• Participating viruses have been associated with 716,000-829,000 respira- countries used a Southern Hemisphere formulation of tory hospitalizations and 41,007-71,710 deaths each year ( 1 ). (cdc.gov)
  • The periodic update of viruses contained in influenza vaccines is necessary for the vaccines to be effective due to the constant evolving nature of influenza viruses, including those circulating and infecting humans. (mediamonitors.net)
  • For active immunization for the prevention of influenza disease caused by influenza A subtype viruses and type B viruses contained in the vaccine. (cdc.gov)
  • For active immunization of persons 18 through 64 years of age for the prevention of influenza disease caused by influenza A subtype viruses and type B viruses contained in the vaccine. (cdc.gov)
  • Influenza viruses also can cause pandemics, during which rates of illness and death from influenza-related complications can increase worldwide. (cdc.gov)
  • Influenza viruses cause disease among all age groups ( 2--4 ). (cdc.gov)
  • Influenza Other Respir Viruses. (who.int)
  • Several influenza type A(H3N2) viruses also have been isolated in France. (cdc.gov)
  • [ 52 ] The use of adamantanes, such as amantadine, has not been recommended since the 2005-2006 influenza season owing to resistance among influenza A viruses. (medscape.com)
  • This virus was named Influenza B and the inactivated influenza vaccine had to be bivalent to provide protection against both types of influenza viruses (Figure 1). (medscape.com)
  • Evolution of influenza viruses and corresponding evolution of influenza vaccines. (medscape.com)
  • Only influenza A viruses are known to cause pandemics. (motherjones.com)
  • Influenza viruses cause mild to severe illness, whereas COVID-19 has caused serious illness in many, resulting in more than 500,000 deaths in the U.S. alone. (health.mil)
  • Influenza A viruses are classified into subtypes on the basis of two surface antigens: hemagglutinin (H) and neuraminidase (N). Three subtypes of hemagglutinin (H1, H2, and H3) and two subtypes of neuraminidase (N1 and N2) are recognized among influenza A viruses that have caused widespread human disease. (cdc.gov)
  • Although influenza B viruses have shown more antigenic stability than influenza A viruses, antigenic variation does occur. (cdc.gov)
  • Influenza viruses travel from person to person through respiratory droplets from coughing, sneezing, and talking. (medicalnewstoday.com)
  • size, it is not always possible to reliably estimate their frequency or establish a causal relationship to Influenza illness and its complications follow infection with influenza viruses. (who.int)
  • 1) represent reactions that are known to occur following immunizations generally or influenza influenza A (H1N1 and H3N2) and influenza B viruses have been in global circulation. (who.int)
  • The majority of SAEs occurred after c adverse events listed below reflect experience in both children and adults and include those a causal relation of GBS with subsequent vaccines prepared from other influenza viruses is unclear. (who.int)
  • In temperate parts of the Northern hemisphere, influenza and respiratory syncytial virus (also known as RSV) surge from December to March, while parainfluenza viruses pick up in spring. (popsci.com)
  • To enhance our Nation's capability to respond to the potential spread of this outbreak, and in accordance with the appropriation, I hereby designate $1.825 billion of the contingent appropriation as emergency funds required to address critical needs related to emerging influenza viruses (specifically, the virus known as 2009-H1N1). (ucsb.edu)
  • Subtypes which have in the past caused pandemics include the influenza A H1N1, H2N2, H3N2 and H1N1pdm09 viruses, while the H3N2 and H1N1pdm09 viruses continue to cause epidemics as seasonal influenza viruses. (health.govt.nz)
  • Influenza B has two lineages of viruses: B/Victoria and B/Yamagata, which are also associated with outbreaks and epidemics, and account for a significant proportion of the overall burden of influenza. (health.govt.nz)
  • Influenza A and B viruses undergo frequent small changes (mutations) in their segmented RNA genome over time. (health.govt.nz)
  • The new virus subtype has novel H and N surface antigens result from the mixing of genomic segments of two or more influenza A viruses. (health.govt.nz)
  • Other possible mechanisms for the emergence of new influenza viruses are through the adaptation of avian influenza viruses to infect humans and the re-assortment of the genomic segments of multiple viruses (ie, human, avian and pig influenza viruses). (health.govt.nz)
  • The H1N1, H3N2 and B Victoria lineage viruses are recommended for trivalent influenza vaccines for 2023 southern hemisphere season. (tga.gov.au)
  • Influenza vaccine viruses and reagents for H1N1, H3N2 and B viruses. (tga.gov.au)
  • Contact the TGA at [email protected] on the suitability for use of other potential candidate vaccine viruses or reagents if they become available. (tga.gov.au)
  • In Australia this year, influenza A (or H3N2) viruses dominated, the same strain thought to have infected Murrieta. (healthline.com)
  • The majority of reported influenza virus detections across the Region were type A, although 5 countries reported type B virus dominance and 2 reported co-dominance of type A and B viruses. (flutrackers.com)
  • Type A viruses have dominated across the European Region, although a number of countries reported influenza type B virus dominance or co-dominance of types A and B viruses. (flutrackers.com)
  • In sentinel sources, both influenza A subtypes, A(H3N2) and A(H1N1)pdm09, are co-circulating and of the influenza B viruses, the vast majority (97%) are B/Victoria lineage. (flutrackers.com)
  • surveillance focused on the subset of avian influenza viruses that pose significant risk of infecting humans, including certain viruses of low pathogenicity in poultry. (nationalacademies.org)
  • Seasonal influenza illness is typically caused by influenza A virus subtypes H1N1 or H3N2, or by influenza B or C viruses. (texas.gov)
  • Influenza A and B viruses cause yearly epidemics-typically in the winter months-in the Northern Hemisphere. (texas.gov)
  • Influenza viruses can be spread by large respiratory droplets generated when an infected person coughs or sneezes in close proximity to an uninfected person. (texas.gov)
  • Sometimes influenza viruses are spread when a person touches a surface with influenza viruses on it (e.g., a door knob), and then touches his or her own nose or mouth. (texas.gov)
  • Although 1 influenza virus traditionally dominates in a season, the other viruses can and do cause infections in respectable amounts, as seen with the data from the southern hemisphere. (pharmacytimes.com)
  • After a hard-hitting " tripledemic ," a spike in the case numbers for three contagious viruses last year, namely the influenza (flu), COVID-19 and respiratory syncytial virus, what can we expect from the upcoming respiratory virus season this year? (jhunewsletter.com)
  • ABSTRACT We monitored phenotypic and genotypic susceptibility of influenza viruses circulating in Morocco during 2014-2015 to oseltamivir and zanamivir. (who.int)
  • Throat and nasal swab specimens were collected from outpatients (with influenza-like illness) and inpatients (with severe acute respiratory illness) and tested for influenza viruses using real-time reverse transcription polymerase chain reaction. (who.int)
  • Sixty influenza B viruses isolated from MDCK cells showed no significant resistance to NAIs. (who.int)
  • The two influenza B viruses with reduced susceptibility to oseltamivir show that ongoing NAI susceptibility surveillance is essential. (who.int)
  • Influenza A(H1N1) viruses have been most commonly reported. (cdc.gov)
  • What happens in the Southern Hemisphere does not necessarily predict what will happen next in the Northern Hemisphere because different influenza viruses may predominate in different parts of the world and immunity may be different between populations. (cdc.gov)
  • The continued impact of COVID-19 on the circulation of respiratory viruses like influenza, remains unclear, but ongoing global flu surveillance remains important for trying to understand flu virus seasonality going forward. (cdc.gov)
  • median 2078 [IQR 1087-3008] per country-year) were positive for influenza viruses. (bvsalud.org)
  • In influenza A(H3N2) viruses, three NA amino acid residues have previously been associated with NA-mediated hemagglutination: T148, D151, and more recently, H150. (cdc.gov)
  • Transmission characteristics of the 2009 H1N1 influenza pandemic: comparison of 8 Southern hemisphere countries. (ox.ac.uk)
  • While in Northern hemisphere countries, the pandemic H1N1 virus (H1N1pdm) was introduced outside of the typical influenza season, Southern hemisphere countries experienced a single wave of transmission during their 2009 winter season. (ox.ac.uk)
  • Global patterns in seasonal activity of influenza A/H3N2, A/H1N1, and B from 1997 to 2005: viral coexistence and latitudinal gradients. (who.int)
  • In France, an influenza type A(H1N1) epidemic has been reported. (cdc.gov)
  • However, in Japan, where influenza type B was first isolated in October, influenza type A(H1N1) outbreaks since have occurred among schoolchildren. (cdc.gov)
  • However, an island-wide outbreak of influenza A(H1N1) virus occurred in Trinidad during September, and one isolate of influenza type B was also recovered. (cdc.gov)
  • Canada reported the first isolates of the 1988-89 influenza season from type A(H1N1) virus activity in late November and early December. (cdc.gov)
  • These clinical practice guidelines are an update to the guidelines published by the IDSA in 2009, prior to the 2009 H1N1 influenza pandemic. (medscape.com)
  • Within the Act, the Congress appropriated $7.65 billion to the Department of Health and Human Services for the 2009- H1N1 influenza outbreak, including a $5.8 billion contingent appropriation for an influenza pandemic. (ucsb.edu)
  • The southern hemisphere 2023 vaccine will contain one new strain for the A(H1N1)pdm09-like virus. (tga.gov.au)
  • That far exceeds the 59,000 cases during the 2009 H1N1 influenza pandemic. (healthline.com)
  • An increased risk of severe influenza infection was also observed in postpartum women (those delivered within the previous 2 weeks) during the 2009-2010 H1N1 pandemic. (buildyourcnc.com)
  • Vaccines for the 2019-2020 Northern Hemisphere saw updates to both the H3N2 and H1N1 influenza A strains, which had not been updated in a couple of years. (pharmacytimes.com)
  • 4 Although the H1N1 and influenza B Yamagata lineage components mirror what is in the 2019-20 Northern Hemisphere vaccine, the WHO recommends the A/south Australia/34/2019 (H3N2)-like virus and the B/Colorado/06/2017-like virus (Victoria lineage). (pharmacytimes.com)
  • It is also important to remember that while WHO recommended different H3N2 and Victoria lineage components, the H1N1 and Yamagata lineage components are the same as what is and will be administered to patients in the northern hemisphere over the next few months. (pharmacytimes.com)
  • Of 440 specimens, 135 were positive for influenza B Yamagata-like virus, 38 were A(H1N1)pdm09 and 25 were A(H3N2). (who.int)
  • Pregnant women and other people at high risk should be vaccinated against the H1N1 swine fluvirus as the cold weather begins to bite in the northern hemisphere, the World Health Organization (WHO) said on Tuesday. (ibtimes.com)
  • This 2023 Southern Hemisphere flu season, some Central and South America countries have early or intense influenza A(H1N1) activity, while others have typically timed seasons with a mix of influenza A(H3N2), influenza A(H1N1), and influenza B/Victoria. (cdc.gov)
  • The most commonly observed influenza virus subtypes were B followed by A/ H3 in ILI cases, and A/H1N1 followed by B in SARI cases. (who.int)
  • In addition, the predominant influenza virus subtype was an H3N2, in contrast to dominance by H1N1 subtypes in recent past years. (medscape.com)
  • In Latin American and Caribbean countries, influenza national influenza vaccination campaign. (cdc.gov)
  • and 5) the assessment of vaccine supply, timing of influenza vaccination, and prioritization of inactivated vaccine in shortage situations. (cdc.gov)
  • Influenza vaccination is the primary method for preventing influenza and its severe complications. (cdc.gov)
  • Vaccination is associated with reductions in influenza-related respiratory illness and physician visits among all age groups, hospitalization and death among persons at high risk, otitis media among children, and work absenteeism among adults ( 8--18 ). (cdc.gov)
  • and the military lead for the Department of Defense's Influenza Vaccination Program. (health.mil)
  • Routine annual influenza vaccination is recommended for all persons aged 6 months or older who do not have contraindications. (medscape.com)
  • Influenza vaccination also must be encouraged to prevent the infection. (medscape.com)
  • These trials carried out by the U.S. Army led to the conclusion that vaccination reduced the incidence of both mild and severe clinical episodes of influenza and influenza-related mortality. (medscape.com)
  • 00:02:03.030 COCA CDC (Moderator): At the conclusion of the session, the participant will be able to accomplish the following summarize updates to a Civ recommendations for the 2022 2021 influenza vaccination season. (cdc.gov)
  • The principal changes include a) information about the influenza virus strains included in the trivalent vaccine for 1998-99, b) more detailed information about influenza-associated rates of hospitalization, and c) updated information on the possible relationship between Guillain-Barre syndrome and influenza vaccination. (cdc.gov)
  • If Guillain-Barré Syndrome (GBS) has occurred within 6 weeks of previous influenza vaccination, the TIV-2, respectively, reported unsolicited adverse events. (who.int)
  • Project Banksia involves the design, construction, validation and registration of a new state-of-the-art biopharmaceutical facility, which will use innovative cell-based technology to produce influenza vaccines for use in both influenza pandemics and seasonal vaccination programs. (icn.org.au)
  • Demand for flu vaccines continues to grow each year, in recognition of the importance of influenza vaccination programs. (siteselection.com)
  • With the high demand for influenza vaccination this year, the Ministry of Health and PHARMAC have obtained 360,000 doses of influenza vaccine from the Northern Hemisphere. (bpac.org.nz)
  • Influenza vaccination should not be delayed to procure a specific vaccine preparation if an appropriate one is already available. (medscape.com)
  • The most effective way to protect against the flu is an annual influenza vaccination. (childrens.com)
  • Early vaccination of children younger than age 9 years who are first time vaccinees can be helpful in assuring routine second doses before the influenza season begins. (buildyourcnc.com)
  • ACIP recommends annual influenza vaccination for all children age 6 months and older who do not have a contraindication to the vaccine. (buildyourcnc.com)
  • Children age 6 months through 8 years who did not receive AT LEAST 1 dose of the 2010-11 vaccine should receive 2 doses, separated by at least 4 weeks, REGARDLESS of their previous influenza vaccination history. (buildyourcnc.com)
  • Children age 6 months through 8 years whose influenza vaccination status from the previous season is not known should also receive 2 doses at least 4 weeks apart. (buildyourcnc.com)
  • 1 Additionally, all regular-dose and recombinant vaccines are now quadrivalent and therefore covering both lineages of influenza B. 1 The CDC still continues to recommend that vaccination be offered by the end of October but added caution against vaccinating before September, as it could potentially result in reduced protection later in the influenza season. (pharmacytimes.com)
  • BACKGROUND: Using country-specific surveillance data to describe influenza epidemic activity could inform decisions on the timing of influenza vaccination. (bvsalud.org)
  • We analysed surveillance data from African countries to characterise the timing of seasonal influenza epidemics to inform national vaccination strategies. (bvsalud.org)
  • Data on seasonal influenza vaccination policies and coverage (2008/2009-2014/2015) was collected by VENICE (Vaccine European New Integrated Collaboration Effort) through the National Gatekeepers and Contact Points in the EU/EEA Member States ( http://venice.cineca.org/ ) and supported by the European Centre for Disease Prevention and Control (ECDC). (who.int)
  • Data on seasonal influenza vaccination policies and coverage (2008/2009-2014/2015) in the non-EU/EEA Member States was collected by the WHO Regional Office for Europe through a survey in 2015. (who.int)
  • Since data on influenza vaccine recommendations were not collected for the EU/EEA countries in the 2008/2009 and 2013/2014 seasons, information from the 2007/2008 and 2012/2013 seasons were used as a proxy for vaccination policies in 2008/2009 and 2013/2014 respectively for these countries. (who.int)
  • In some instances, additional data has been obtained from official national reports on influenza vaccination. (who.int)
  • It should be noted that definition of target groups recommended for influenza vaccination varies by Member State and that definitions may have changed over time. (who.int)
  • In addition to vaccination, other public health measures are also effective in limiting influenza transmission in closed environments. (medscape.com)
  • For more information, see the Centers for Disease Control and Prevention (CDC) Influenza Advisory Committee on Immunization Practices Vaccine Recommendations and CDC: Influenza Vaccination . (msdmanuals.com)
  • Annual vaccination against influenza with an age-appropriate formulation is recommended for all people ≥ 6 months of age who do not have a contraindication. (msdmanuals.com)
  • Sweden and the Netherlands have reported influenza type A(H3N2) isolation. (cdc.gov)
  • In the western part of Africa, also, there's a very low circulation of influenza B and influenza A H3N2,' Zhang said. (scrippsnews.com)
  • Basically, they're the same as the H3N2 strains that were active in Australia, so we are braced for a serious influenza season. (healthline.com)
  • One was that the bulk of last year's flu cases had been the familiar influenza A (H3N2 and H3N3), which typically caused more illness in elderly populations. (nzherald.co.nz)
  • indicates that there was an antigenic mismatch of the 2019 Southern Hemisphere influenza vaccine within the H3N2 component. (pharmacytimes.com)
  • Unfortunately, the strain was ultimately found to have a substitution that results in the loss of a glycosylation site in the antigenic site B of hemagglutinin which is associated with low vaccine effectiveness during H3N2-dominated influenza seasons. (pharmacytimes.com)
  • The World Health Organization (WHO) today announced the recommendations for the viral composition of influenza vaccines for the 2023-2024 influenza season in the northern hemisphere. (mediamonitors.net)
  • The announcement was made at an information session at the end of a 4-day meeting on the Composition of Influenza Virus Vaccines , a meeting that is held twice annually. (mediamonitors.net)
  • The recommendations issued are used by the national vaccine regulatory agencies and pharmaceutical companies to develop, produce, and license influenza vaccines for the following influenza season. (mediamonitors.net)
  • The Enhanced Passive Safety Surveillance is a requirement of the European Medicines Agency (EMA) for seasonal influenza vaccines, aiming to rapidly detect any significant change in frequency or severity of expected reactogenicity or allergic events prior to widespread use of a vaccine in any particular year. (biomedcentral.com)
  • Therefore, conducting annual safety surveillance on seasonal influenza vaccines is important, and a requirement for the EMA. (biomedcentral.com)
  • To identify new, transformative concepts that could lead to the development of a universal flu vaccine, the Grand Challenge for Universal Influenza Vaccine Development launched in April 2018 with a call for researchers from any field to submit innovative ideas for developing safe, effective, affordable flu vaccines. (mlo-online.com)
  • The vaccine strains for the upcoming influenza season are selected annually by the Food and Drug Administration's Vaccines and Related Biologic Products Advisory Committee based on WHO's recommended Northern Hemisphere influenza vaccine composition. (medscape.com)
  • The Australian Influenza Vaccine Committee (AIVC) met to recommend the composition of the influenza virus vaccines for Australia in 2023. (tga.gov.au)
  • The AIVC recommendation for the composition of influenza vaccines for Australia in 2023 differs from the 2022 southern hemisphere and 2022/23 northern hemisphere recommendations. (tga.gov.au)
  • It has been suggested that the low efficacy of the flu vaccine against influenza A in Australia may be due to the method in which the vaccines are created in chicken eggs . (healthline.com)
  • Next-generation vaccines that utilize T cells could potentially overcome the limitations of current influenza vaccines that rely on antibodies to provide narrow subtype-specific protection and are prone to antigenic mismatch with circulating strains. (mdpi.com)
  • Traditionally, the vaccine was trivalent (ie, designed to provide protection against three viral subtypes, generally an A-H1, an A-H3, and a B). The first quadrivalent vaccines, which provide coverage against an additional influenza B subtype, were approved in 2012 and were made available for the 2013-2014 flu season. (medscape.com)
  • 5, 6] For the 2021-2022 influenza season, all flu vaccines are expected to be quadrivalent. (medscape.com)
  • the partners plan to exchange scientific information on avian influenza, share viral isolates, and may eventually manufacture human vaccines against avian viral strains. (nationalacademies.org)
  • There is no scientific evidence that thimerosal in vaccines, including influenza vaccines, is a cause of adverse events, unless the patient has a systemic allergy to thimerosal. (buildyourcnc.com)
  • The World Health Organization (WHO) advisory group announced in September 2019, its recommendations for the 2020 Southern Hemisphere influenza vaccine composition, and 2 of the 4 recommended components are different than the vaccines now being administered to patients in the Northern Hemisphere. (pharmacytimes.com)
  • ABSTRACT Information on the prevalence of influenza, circulating virus subtypes and seasonality is essential for selecting strains for annual vaccines and for planning immunization programmes. (who.int)
  • are modified annually to include the most prevalent strains (usually 2 strains of influenza A and 1 or 2 strains of influenza B). Sometimes slightly different vaccines are used in the northern and southern hemispheres. (msdmanuals.com)
  • Influenza-like ciated with a reduction (43%) in weekly rates of respiratory disease ( 12 ). (cdc.gov)
  • During periods of low influenza activity, influenza testing should be performed upon admission in all patients who require hospitalization with acute respiratory illness (with or without fever), who have been in contact with a person diagnosed with influenza, or who have recently traveled from a location known to have influenza activity. (medscape.com)
  • In hospitalized patients with respiratory failure who are receiving mechanical ventilation, including those in whom influenza testing results were negative based on upper respiratory tract specimens, endotracheal aspirate or bronchoalveolar lavage fluid specimens should be collected for influenza testing as soon as possible. (medscape.com)
  • According to the CDC, COVID-19 and influenza are both contagious respiratory illnesses, albeit each caused by infection from a different virus. (health.mil)
  • For these reasons, major epidemics of respiratory disease caused by new variants of influenza continue to occur. (cdc.gov)
  • Unlike other common respiratory illnesses, influenza can cause severe malaise lasting several days. (cdc.gov)
  • During influenza epidemics, high attack rates of acute illness result in both increased numbers of visits to physicians' offices, walk-in clinics, and emergency rooms and increased hospitalizations for management of lower respiratory tract complications. (cdc.gov)
  • We keep emphasizing the need to have widespread access to rapid diagnostic tests so that we can rapidly and accurately determine when somebody presents with those types of symptoms who might have COVID, who might have influenza or who might have another respiratory virus,' Singer says. (scrippsnews.com)
  • This weekly report provides a current epidemiological update on the intensity and severity of respiratory activity in Manitoba including laboratory confirmed activity of both COVID-19 and seasonal influenza. (gov.mb.ca)
  • 1 ] Influenza C is associated with mild cases of upper respiratory infection. (health.govt.nz)
  • Influenza, one of the most common infectious diseases, is a highly contagious airborne disease that occurs in seasonal epidemics and manifests as an acute febrile illness with variable degrees of systemic symptoms, ranging from mild fatigue to respiratory failure and death. (medscape.com)
  • Influenza ("the flu") is a respiratory illness caused by the influenza virus. (texas.gov)
  • Past studies have shown that falling humidity is tied to increased transmission rates of other respiratory diseases, such as influenza. (news-medical.net)
  • Globally, seasonal influenza for severe acute respiratory infection Aswan and Minya fever hospitals. (who.int)
  • The aim of this surveillance was to assess the quadrivalent inactivated split-virion influenza vaccine (IIV4) during routine immunization in Finland, as per the national immunization program for 2019/20. (biomedcentral.com)
  • certolizumab pegol decreases effects of influenza virus vaccine quadrivalent, intranasal by pharmacodynamic antagonism. (medscape.com)
  • A quadrivalent recombinant influenza vaccine (RIV4) and a cell culture-based vaccine (ccIIV4) that do not contain egg protein are available. (msdmanuals.com)
  • Adults ≥ 65 years should be given any one of the quadrivalent high-dose IIV, quadrivalent recombinant influenza vaccine, or quadrivalent adjuvanted IIV. (msdmanuals.com)
  • Defense Health Agency officials had indicated in early December 2020, that Influenza-Like-Illness (ILI) does tend to peak during the winter months, which has been the case in the Pacific Northwest the last few years. (health.mil)
  • During NMRTC Bremerton's 2020-2021 seasonal influenza campaign, over 2,250 flu shots were administered, including a staff pandemic influenza drill that immunized approximately 750 staff members in less than 72 hours. (health.mil)
  • ECDC and WHO Regional Office published a joint Regional Situation Assessment of the 2019-2020 influenza season up to week 49/2019, which focuses on disease severity and impact on healthcare systems to assist forward planning in Member States. (flutrackers.com)
  • However, a significant decrease in influenza was observed after week 6 of 2020. (jmir.org)
  • visual comparisons were conducted on the onset, duration and the peak timing of each influenza season based on subtypes. (who.int)
  • New influenza A virus subtypes emerge periodically that have caused pandemics in humans. (health.govt.nz)
  • This has provided hope for the design of a universal vaccine able to prime against diverse influenza virus strains and subtypes. (mdpi.com)
  • Epidemics of influenza typically occur during the winter months in temperate regions and have been responsible for an average of approximately 36,000 deaths/year in the United States during 1990--1999 ( 1 ). (cdc.gov)
  • COVID-19 and influenza epidemics this winter? (mlo-online.com)
  • Previously healthy children and younger adults also may require hospitalization for influenza-related complications, but the relative increase in their hospitalization rates during epidemics is less than for persons who belong to high-risk groups. (cdc.gov)
  • Influenza epidemics occur each year. (health.govt.nz)
  • Three (12%) had a primarily southern hemisphere pattern with some northern hemisphere epidemics (Ghana, Kenya, and Uganda). (bvsalud.org)
  • contribute ever, at the 8 sentinel sites for selecting hemispheres, influenza activity has been to global influenza surveillance and vac- SARI cases a cluster random sampling well described showing that annual win- cine strain selection by submitting virus technique was used for enrolment and ter epidemics are associated with excess strains to the WHO Global Influenza sampling. (who.int)
  • These results suggest that early and aggressive treatment action should be taken in patients with a high clinical suspicion of severe influenza infection. (medscape.com)
  • 16 y who have symptoms of influenza infection or colds, aspirin is not recommended because of an association with Reye syndrome . (medscape.com)
  • Frederick noted that healthcare workers in any hospital setting are considered to be at high risk of becoming infected with influenza and passing the infection to others, a similar concern with the COVID-19 virus. (health.mil)
  • When you have a young adult who has an overwhelming influenza infection, it can obviously be very, very serious," Schaffner told Healthline. (healthline.com)
  • We aim to investigate the impact of implemented infectious control strategies on the incidences of influenza, enterovirus infection, and all-cause pneumonia during the COVID-19 pandemic. (jmir.org)
  • Data from the Southern Hemisphere showed early infection with the influenza A virus and increased severity of illness," Dr. Sharma says. (childrens.com)
  • As a result, trends in vaccine effectiveness and influenza infection in the Southern Hemisphere may give clinicians in the Northern Hemisphere potential clues about what to expect. (pharmacytimes.com)
  • Although influenza strengthened in close collaboration sites, El-Gabarty polyclinic and the causes self-limiting infection and most with the World Health Organization outpatient clinics of Helwan, Embaba, people recover quickly, pregnant (WHO) and the Centers for Disease Zagazig and Damietta fever hospitals, women, the very young, the elderly and Control and Prevention (CDC) in collect data on ILI cases only. (who.int)
  • Hemisphere influenza season. (cdc.gov)
  • Caribe--influenza [REVELAC-i]) to estimate and monitor influenza season ( 3 ). (cdc.gov)
  • At the same time, the Northern hemisphere influenza season is starting. (allafrica.com)
  • Passive surveillance of individuals vaccinated with IIV4 was conducted within the first 4 to 6 weeks of the influenza season in Finland. (biomedcentral.com)
  • Therefore, this current surveillance aims to address the requirements of the EPSS for IIV4 during routine immunization, as per the national immunization program in Finland for the influenza season 2019/20. (biomedcentral.com)
  • It has also survived through the summer, a season usually free from influenza in the northern hemisphere. (motherjones.com)
  • There are four main types of influenza: A, B, C, and D. While all are capable of causing illness in humans, types A and B cause the majority of infections in flu season. (motherjones.com)
  • The ongoing pandemic outbreak has overlapped with the annual Northern Hemisphere influenza season. (health.mil)
  • In the southern hemisphere, WHO data shows the season remained low or below baseline. (scrippsnews.com)
  • This week, there were sporadic laboratory-confirmed cases of influenza A and B. Overall, influenza activity this season had an early start and also decreased earlier than would be expected. (gov.mb.ca)
  • What's more, many countries in the Northern hemisphere endured a second wave of COVID-19 despite entering the summer season. (popsci.com)
  • There remains much uncertainty about the outbreak and its potential to return this fall during the northern hemisphere flu season. (ucsb.edu)
  • Australia has just emerged from a rough flu season, with record high numbers of laboratory-confirmed influenza notifications, and a higher than normal number of deaths and hospitalizations due to influenza. (healthline.com)
  • Just under half of the U.S. population gets vaccinated against influenza each season and experts are encouraging people not to believe myths like the influenza vaccine will make you sick with the flu. (healthline.com)
  • The CDC documented that seasonal influenza was responsible for 5,000 to 14,000 deaths during the 2021-2022 season. (medscape.com)
  • Influenza A and B vaccine is administered each year before flu season. (medscape.com)
  • Health experts aimed to create the most effective vaccine possible for this year's flu season based on the strains of the flu that are currently circulating in the Southern Hemisphere. (childrens.com)
  • ACIP's influenza recommendations for children age 6 months through 8 years have changed for the 2011-12 season. (buildyourcnc.com)
  • According to the new algorithm, certain children need 2 doses of influenza vaccine this influenza season, separated by at least 4 weeks. (buildyourcnc.com)
  • Children age 6 months through 8 years who received 1 dose of seasonal influenza vaccine during the 2010-11 season need ONLY 1 dose this season. (buildyourcnc.com)
  • As the fall season begins in the Northern Hemisphere, the weather will become drier and colder. (news-medical.net)
  • 1 Current influenza activity is below the national baseline of 2.2%, but influenza prevalence can be unpredictable and the influenza season in the Northern Hemisphere is only just starting. (pharmacytimes.com)
  • The influenza season in the Southern Hemisphere generally lasts from April to September and precedes the northern hemisphere's season. (pharmacytimes.com)
  • Although it is impossible to definitively know what activity will be like for any given influenza season, the new WHO recommendations may be a reason for pause. (pharmacytimes.com)
  • With the season just getting under way in the Northern Hemisphere, it seems premature to panic about the match an effectiveness of our vaccine. (pharmacytimes.com)
  • However, clinicians should be aware that the possibility of a vaccine mismatch and that a season with high influenza activity might be upon us again this year. (pharmacytimes.com)
  • Experts use numbers from the Southern Hemisphere as a tool to model flu patterns in North America because the flu season there usually happens 2-3 months before ours. (jhunewsletter.com)
  • Epidemiologists] have some clues based on what happened in the Southern Hemisphere, where they had a moderately severe season," Adalja stated. (jhunewsletter.com)
  • Parts of North America and Europe have already crossed the epidemic threshold, ahead of the normal influenza season which peaks in January-February for the northern hemisphere, WHO says. (ibtimes.com)
  • As flu activity in the United States continues at low levels that are typical for this time of year, CDC also is tracking flu activity in the Southern Hemisphere, which generally has its "flu season" at this time. (cdc.gov)
  • Flu season in the Southern Hemisphere usually occurs between April and September, compared with October through May in the Northern Hemisphere. (cdc.gov)
  • Nevertheless, flu seasons in the Southern Hemisphere remind us of what could happen in the United States and help us think of scenarios to better prepare for our flu season. (cdc.gov)
  • CDC will continue to monitor ongoing flu activity in the Southern Hemisphere as their season progresses. (cdc.gov)
  • Year describes the first year of the influenza season (northern hemisphere). (who.int)
  • For example, 2009 means 2009/2010 influenza season. (who.int)
  • Coverage is percentage of persons in risk groups who received one dose of influenza vaccine during the influenza season. (who.int)
  • 2004-2010 influenza-like-illness surveillance data from tematically report weekly age-specific physician visits for Chile. (cdc.gov)
  • Typical influenza illness is characterized by abrupt onset of fever, myalgia, sore throat, and nonproductive cough. (cdc.gov)
  • More severe illness can result if either primary influenza pneumonia or secondary bacterial pneumonia occurs. (cdc.gov)
  • An influenza-associated pediatric death is a death in a child under 18 years of age resulting from a clinically compatible illness that is confirmed to be influenza by an appropriate laboratory or rapid diagnostic test. (texas.gov)
  • Most people who develop influenza illness will recover on their own with bed rest and do not need medication. (texas.gov)
  • These medications are usually prescribed to persons who have a severe illness or to those who are at higher risk for developing serious illness or complications due to influenza. (texas.gov)
  • Some people are more likely to develop complications from their influenza illness, leading to hospitalization or even death. (texas.gov)
  • and influenza-like illness (ILI) in 1999. (who.int)
  • [ 3 , 4 ] A total of 31,989 participants were randomly assigned to receive either a high dose (IIV3-HD) (60 μg of hemagglutinin per strain) or a standard dose (IIV3-SD) (15 μg of hemagglutinin per strain) of a trivalent, inactivated influenza vaccine. (medscape.com)
  • In 1940, for the first time, a different influenza virus was discovered and isolated. (medscape.com)
  • Right now, surveillance showed levels of influenza-like illnesses were low across New Zealand, with Covid-19 hospitalisations and death rates also hovering around their lowest since Omicron first arrived. (nzherald.co.nz)
  • High-dose influenza vaccine appears to have the potential to prevent nearly one-quarter of all breakthrough influenza illnesses in seniors (≥65 y) compared with the standard-dose vaccine, according to results from a phase IIIb-IV double-blind, active-controlled trial. (medscape.com)
  • The Threat of Pandemic Influenza: Are We Ready? (nationalacademies.org)
  • Study selection Studies were included if they reported on a seasonal or pandemic influenza outbreak coinciding with a planned or unplanned school closure. (bmj.com)
  • 4 Here, we review epidemiological studies to assess the effects of school closures on transmission and incidence of seasonal and pandemic influenza, updating and extending previous reviews 2 , 4 to include data from the 2009 pandemic. (bmj.com)
  • If they become ill with influenza, such members of high-risk groups (see Groups at Increased Risk for Influenza-Related Complications) are more likely than the general population to require hospitalization. (cdc.gov)
  • It is especially important to vaccinate pregnant women because of their increased risk for influenza-related complications. (buildyourcnc.com)
  • For months, I have been following the media coverage of the devastating outbreak of avian influenza as it's killed thousands of seabirds in Scotland. (motherjones.com)
  • The chapter concludes with an example of a low-pathogen avian influenza outbreak in a group of commercial poultry farms and the steps the industry took to contain further spread of the virus, minimize the risk of exposure, and monitor and prevent further infections. (nationalacademies.org)
  • In Chile, wintertime influenza activity peaks during studies have considered data from multiple epidemic pe- May-September, which is typical of temperate regions in riods, and little information is available from the Southern the Southern Hemisphere ( 15 ). (cdc.gov)
  • However, at this time, there was no definitive confirmation of clinical protection, because the influenza epidemic during the 1942-1943 winter was mild. (medscape.com)
  • It is estimated that, in the twenty-first century, a large pandemic--like what we saw with Spanish influenza back in 1917 and 1918--that epidemic in today's costs would be over six trillion dollars. (cdc.gov)
  • We calculated a 3-week moving proportion of samples positive for influenza virus and assessed epidemic timing using an aggregate average method. (bvsalud.org)
  • INTERPRETATION: Most countries had identifiable influenza epidemic periods that could be used to inform authorities of non-seasonal and seasonal influenza activity, guide vaccine timing, and promote timely interventions. (bvsalud.org)
  • influenza identifies yearly antigenic variants. (who.int)
  • Because of this ongoing antigenic drift, seasonal influenza virus vaccine formulations are reviewed by the WHO bi-annually. (health.govt.nz)
  • At this meeting, the expert committee reviewed and evaluated epidemiology, antigenic and genetic data of recent influenza isolates circulating in Australia and the southern hemisphere. (tga.gov.au)
  • A global review of national influenza immunization policies: Analysis of the 2014 WHO/UNICEF Joint Reporting Form on immunization. (who.int)
  • The data comes from tests of more than 150,000 samples from national influenza laboratories in 71 countries that report data to FluNet, a global surveillance system. (rtmagazine.com)
  • 00:00:42.300 COCA CDC (Moderator): I like to welcome you to today's cocoa call 2022 2021 influenza vaccine recommendations and clinical guidance during the covert 19 pandemic. (cdc.gov)
  • An estimated 19,000 to 58,000 deaths have been attributed to influenza since October 2022. (medscape.com)
  • BACKGROUND: Avian influenza (AI) virus detections occurred frequently in 2022 and continue to pose a health, economic, and food security risk. (cdc.gov)
  • And that soon spread throughout the U.S. in the Western Hemisphere, avian influenza is another. (wbur.org)
  • We have the chikungunya virus and the Zika virus outbreaks in the western hemisphere, over the past two years. (cdc.gov)
  • [ 2 ] Early antiviral therapy must be considered among hospitalized children diagnosed with or suspected to have influenza, especially if they have risk factors such as asthma, cardiac problems, or other conditions, to prevent severe complications and prolonged hospitalization. (medscape.com)
  • This descriptive study compared the influenza surveillance data from the Korea Centers for Disease Control and Prevention with that from other countries and areas in the northern hemisphere, namely China, including Hong Kong Special Administrative Region SAR, Japan and the United States of America, to identify seasonal influenza patterns from 2012 to 2017. (who.int)
  • WHO organizes these consultations with an advisory group of experts gathered from WHO Collaborating Centres and WHO Essential Regulatory Laboratories to analyse influenza virus surveillance data generated by the WHO Global Influenza Surveillance and Response System. (mediamonitors.net)
  • METHODS: We used publicly available sentinel data from African countries reporting to the WHO Global Influenza Surveillance and Response FluNet platform that had 3-10 years of data collected during 2010-19. (bvsalud.org)
  • Continuous monitoring and comparison of influenza surveillance data with neighbouring countries is recommended to enhance preparedness against influenza. (who.int)
  • Although only 25 Member States and areas reported data for week 52, sentinel surveillance data indicated influenza activity was still increasing across the region. (flutrackers.com)
  • 00:04:11.850 Lisa Grohskopf, MD, MPH, CAPT, USPHS: So I'll be highlighting some aspects of the ACP influenza vaccine recommendations for this year. (cdc.gov)
  • Evidence for two distinct lineages of influenza B (Victoria and Yamagata lineages) have co-circulated worldwide. (who.int)
  • The Republic of Korea has a temperate climate, and influenza activity usually peaks in the winter as in other temperate-climate countries in the northern hemisphere. (who.int)
  • Certainly the indications are that this will become something quite widespread across the northern hemisphere temperate zones as we go forward through the late autumn and winter, Hartl said. (ibtimes.com)
  • Finland has reported influenza type A virus of unknown subtype. (cdc.gov)
  • Patrick Wilson, PhD, professor of medicine and rheumatology at the University of Chicago, and a group of researchers from three other institutions have received a Grand Challenge for Universal Influenza Vaccine Development grant-a $12 million initiative funded by the Bill & Melinda Gates Foundation and Flu Lab. (mlo-online.com)
  • The number of confirmed influenza cases in Japan showed a high correlation with the laboratory-confirmed influenza cases in the Republic of Korea. (who.int)
  • [ 3 , 4 ] Laboratory-confirmed influenza (via nasopharyngeal swabs for culture, polymerase chain reaction, or both) occurred in 228 participants in the IIV3-HD group (1.4%) and 301 participants in the IIV3-SD group (1.9%), a relative efficacy of 24.2% (95% confidence interval [CI], 9.7 to 36.5). (medscape.com)
  • Objective To review the effects of school closures on pandemic and seasonal influenza outbreaks. (bmj.com)
  • This systematic review assesses the effects of school closures on the transmission of influenza, including data from the recent 2009 pandemic as well as from previous pandemics and seasonal outbreaks. (bmj.com)
  • The available data suggest that school closure can be a useful intervention during influenza outbreaks, with the greatest benefits occurring among school-aged children. (bmj.com)
  • 1.2 change to one or more new strains in each year's influenza vaccine. (who.int)
  • Preliminary estimates from Australia suggest that this year's vaccine against influenza A was only 10 percent effective. (healthline.com)
  • WHO Collaborating Center for Influenza, Epidemiology Office and Influenza Br, Div of Viral Diseases, Center for Infectious Diseases, CDC. (cdc.gov)
  • Guidelines on the diagnosis and treatment of influenza were released on December 19, 2018, by the Infectious Diseases Society of America (IDSA). (medscape.com)
  • Tracking influenza and other infectious diseases can help to reveal the effectiveness of public-health policies aimed at stopping the coronavirus pandemic. (rtmagazine.com)
  • The vaccine, Influvac Tetra (Saison 19/20), contains two of the same strains of influenza as Afluria Quad (the current Southern Hemisphere vaccine), and one that is closely related (see Table 1 ). (bpac.org.nz)
  • The novel coronavirus is highly contagious and, unlike influenza or rhinoviruses, SARS-CoV-2 is new. (popsci.com)
  • Is influenza contagious? (texas.gov)
  • To include the 2017 Southern Hemisphere Formulation and Associated Labeling Revisions. (cdc.gov)
  • Live-attenuated influenza vaccine (LAIV) can be given to healthy people aged 2 to 49 years who are not pregnant and who do not have immunocompromising conditions. (msdmanuals.com)
  • Safety of LAIV has not been established in people with disorders that predispose them to complications from influenza, including advanced lung disease or asthma. (msdmanuals.com)
  • Using this national epidemiological database, we found a significant decrease in cases of influenza, enterovirus, and all-cause pneumonia during the COVID-19 pandemic. (jmir.org)
  • Socioeconomic burden of influenza in the Republic of Korea, 2007-2010. (who.int)
  • Evidence from animal models shows that T cells can provide heterosubtypic protection and are crucial for immune control of influenza virus infections. (mdpi.com)
  • 2 years, and persons of any age who have medical conditions that place them at increased risk for complications from influenza ( 2,5--7 ). (cdc.gov)
  • As with other diseases, prevention of influenza is the most effective strategy. (medscape.com)
  • Prevention of influenza is the most effective management strategy. (medscape.com)
  • The US Centers for Disease Control and Prevention (CDC) estimates that seasonal influenza is responsible for an average of more than 20,000 deaths annually. (medscape.com)
  • 5 Likewise, while most influenza B lineages were not determined, when it was, the Victoria linage was much more prevalent than the Yamagata lineage. (pharmacytimes.com)