Influenza a illness. Medical search. Frequent questions

Like other close-contact environments, these settings can facilitate the transmission of influenza viruses and other respiratory viruses from person to person through droplet spread or potentially through contact with contaminated surfaces. (cdc.gov)
Most cases of ILI are caused not by influenza but by other viruses (e.g., rhinoviruses, coronaviruses, human respiratory syncytial virus, adenoviruses, and human parainfluenza viruses). (wikipedia.org)
Seasonal influenza A(pH1N1) and influenza B viruses continue to circulate among persons in areas where H7N9 cases have been detected, and the Chinese Centers for Disease Control and Prevention has reported that rates of influenza-like illness are consistent with expected seasonal levels. (cdc.gov)
The symptoms of these viruses are similar and may be difficult to determine what is causing illness, but all of them can be transmitted to others. (eaglecounty.us)
Since October 2015, CDC has detected co-circulation of influenza A(H3N2), A(H1N1)pdm09, and influenza B viruses. (cdc.gov)
Clinicians should continue efforts to vaccinate patients this season for as long as influenza viruses are circulating, and promptly start antiviral treatment of severely ill and high-risk patients if influenza is suspected or confirmed. (cdc.gov)
Nationally, an increased proportion of subtyped influenza A viruses have been identified as 2009 influenza A (H1N1) over the last few weeks. (cdc.gov)
From both an economic and public health perspective, influenza is one of the most important viruses because it may cause more severe symptoms than other respiratory viruses. (biomedcentral.com)
Data from public health laboratories are used to monitor the proportion of circulating viruses that belong to each influenza virus type/subtype/lineage. (cdc.gov)
Viruses known to be associated with recent live attenuated influenza vaccine (LAIV) receipt or found upon further testing to be a vaccine virus are not included as they are not circulating influenza viruses. (cdc.gov)
Multiple respiratory viruses are co-circulating, and the relative contribution of influenza virus infection to ILI varies by location. (cdc.gov)
Respiratory viruses and influenza-like illness: Epidemiology and outcomes in children aged 6 months to 10 years in a multi-country population sample. (bvsalud.org)
Active surveillance of healthy children provided evidence of respiratory illness burden associated with several viruses , with a substantial burden in older children . (bvsalud.org)
The flu, also called influenza, is a respiratory infection caused by viruses. (medlineplus.gov)
How does the early occurrence of influenza epidemics impact outbreaks of other common seasonal viruses? (medscape.com)
Among the 10,014 influenza A viruses subtyped, 92% have been A(H1N1)pdm09. (canada.ca)
While respiratory viruses such as influenza A/B, respiratory syncytial virus (RSV), human metapneumovirus (hMPV), rhinoviruses (HRV), etc. dominate the RTIs, 10-15% of patients develop secondary bacterial coinfection [ 2 ]. (healthtrackrx.com)
Influenza viruses circulate around the world every year. (cambridge.org)
See PHIL 13469, for the diagrammatic representation of how this Swine Flu stain came to be, through the "reassortment" of two different Influenza viruses. (health.mil)
The estimated VE (46%) indicated that the influenza vaccine during the 2019-2020 influenza season was moderately effective against these influenza viruses. (health.mil)
Influenza surveillance conducted by DODGRS during the 2019-2020 influenza season identified circulating influenza virus (sub)types, provided timely data on the genetic characteristics of the circulating viruses, and estimated influenza VE. (health.mil)
The influenza vaccine was moderately effective against influenza viruses during the 2019-2020 influenza season. (health.mil)
Influenza viruses change from year to year as they undergo constant antigenic drifts and potential antigenic shifts. (health.mil)
Because of the changing nature of these viruses, it is crucial to conduct annual surveillance to determine the circulating viruses and to detect changes in the viruses during the influenza season. (health.mil)
Seasonal influenza vaccination is considered the main strategy to protect against influenza viruses, combat influenza infection, and reduce disease severity. (health.mil)
To improve vaccine effectiveness (VE) against influenza viruses, the strains used in the influenza vaccine need to be updated regularly based on the surveillance findings. (health.mil)
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)
It is caused by a group of continuously changing viruses called influenza viruses. (bcm.edu)
Influenza viruses change easily and often, they are unpredictable, and they can be deadly. (bcm.edu)
There are three different types of influenza virus - A, B, and C. Type A viruses infect humans and several types of animals, including birds, pigs, and horses. (bcm.edu)
Comparison of three non-nested RT-PCR for the detection of influenza A viruses. (jamanetwork.com)
Schweiger BZadow IHeckler RTimm HPauli G Application of a fluorogenic PCR assay for typing and subtyping of influenza viruses in respiratory samples. (jamanetwork.com)
Coronaviruses are enveloped RNA viruses that cause respiratory illnesses of varying severity from the common cold to fatal pneumonia. (msdmanuals.com)

In the United States during the 2008-9 influenza season through 18 April, out of 183,839 samples tested and reported to the CDC, only 25,925 (14.1%) were positive for influenza. (wikipedia.org)
Of the 9,154 specimens tested by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division, 2,866 (31.3%) were positive for influenza. (cdc.gov)
Data from clinical laboratories (the percentage of specimens tested that are positive for influenza) are used to monitor whether influenza activity is increasing or decreasing. (cdc.gov)
1 Samples collected from ILI patients that subsequently test positive for influenza by VIDRL are submitted to the World Health Organization (WHO) Collaborating Centre for Reference and Research on Influenza for strain characterization and antiviral drug sensitivity testing. (who.int)

Influenza pandemic preparedness plans to mitigate effects years of age). (cdc.gov)
This system tracks weekly counts of laboratory-confirmed influenza-associated hospitalizations and deaths and was implemented on August 30, 2009, during the 2009 pandemic, and ended on April 4, 2010. (cdc.gov)
However, in addition to the COVID-19 pandemic, we've also experienced another pandemic relatively recently: the 2009 H1N1 influenza pandemic. (healthline.com)
What proportion of healthcare workers are willing to work during an influenza pandemic? (medscape.com)
This household study identifies risk factors of infection by the pandemic influenza A/H1N1. (medscape.com)
This article synthesizes and extends discussions held during an international meeting on "Surveillance for Decision Making: The Example of 2009 Pandemic Influenza A/H1N1," held at the Center for Communicable Disease Dynamics (CCDD), Harvard School of Public Health, on June 14 and 15, 2010. (nih.gov)
Prior to the COVID-19 pandemic, seasonal influenza represented the highest burden in terms of both incidence and cost among all preventable diseases [ 7 - 9 ]. (healthtrackrx.com)
Many national and international health agencies recommended the use of face masks during the 2009 influenza A (H1N1) pandemic. (cambridge.org)
Pandemic influenza A (H1N1) virus emerged in Mexico in early 2009 and rapidly spread worldwide. (cambridge.org)
The Canadian Pandemic Influenza Plan for the Health Sector (CPIP) is a guidance document developed to assist in the preparation for and response to an influenza pandemic in all jurisdictions in Canada. (canada.ca)
The purpose of Annex B is to provide guidance to pandemic planners, at all levels of government, regarding influenza pandemic considerations in on reserve First Nations communities. (canada.ca)
Being well prepared is critical to ensuring that on reserve First Nations communities can mitigate the effects of an influenza pandemic. (canada.ca)
Incorporating the broad range of considerations outlined in this annex into influenza pandemic plans will support an effective response. (canada.ca)
It is important that influenza pandemic plans be incorporated into larger emergency response plans within the community to guarantee a coordinated community response. (canada.ca)
The annex highlights the importance for on reserve First Nations communities to work with their neighbouring communities and regional, provincial and federal governments to develop, test and implement their influenza pandemic plans. (canada.ca)
Also outlined are the responsibilities of on reserve First Nations communities, provincial governments and the federal government for the delivery of health services in the event of an influenza pandemic in on reserve First Nations communities. (canada.ca)
Every few decades or so, a new version of the influenza virus emerges in the human population that causes a serious global outbreak of disease called a pandemic . (bcm.edu)

If the patient requires hospitalisation, the illness is classified instead as a severe acute respiratory infection (SARI). (wikipedia.org)
The percent positive increases with the incidence of infection, peaking with the peak incidence of influenza (see figure). (wikipedia.org)
Clinicians should consider the diagnosis of avian influenza A(H7N9) virus infection in persons with acute respiratory illness and relevant exposure history and should contact their state health departments regarding specimen collection and facilitation of confirmatory testing. (cdc.gov)
In this study we estimated the burden of severe acute respiratory infection (SARI) and influenza-associated SARI (F-SARI) in selected provinces of Islamic Republic of Iran, the trends of SARI and confirmed cases of influenza (F-SARI) over 12 months (seasonality), and the age groups most at risk. (who.int)
H1N1pdm09 virus infection in the past has caused severe illness in some children and young- and middle-aged adults. (cdc.gov)
CONCLUSIONS: We conclude that RSV infection is often associated with ACS and similar in severity to influenza infection in febrile children with SCD. (duke.edu)
The U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet) monitors outpatient visits for respiratory illness referred to as influenza-like illness [ILI (fever plus cough or sore throat)], not laboratory-confirmed influenza, and may capture respiratory illness visits due to infection with any pathogen that can present with similar symptoms, including influenza, SARS-CoV-2, and RSV. (cdc.gov)
We conducted a systematic review [ Reference Moher 6 ] to investigate the evidence supporting the effectiveness of face masks in reducing influenza virus infection under controlled and natural conditions. (cambridge.org)
However, patients with measured fever ≥ 37.5oC were 3 times more likely to have had an influenza infection compared to patients with history of fever. (edu.gh)
Our review shows influenza as an infection with a moderate average incidence and a self-limiting character that is associated with mild morbidity and rare cases of mortality in children. (amsterdamumc.org)
The described leukocyte interactions during infection might play a significant function in the introduction of effective anti-influenza replies. (ampkpathway.com)
In earlier studies, the presence of monocytes-macrophages was shown to be necessary for the infection of human being lymphocytes by influenza A, including H1N1, H2N2, LY3009104 ic50 and H3N2 strains of the computer virus. (ampkpathway.com)
Monocyte-macrophage-dependent an infection of lymphocytes may be expected to take place during immune system cell cluster development induced either with the influenza trojan itself or with the preceding antigen or mitogen arousal [15,16,17,24]. (ampkpathway.com)
The existing studies had been made to examine individual PBMC civilizations for this association of immune system cell clusters with the procedure of influenza trojan an infection. (ampkpathway.com)
We driven the susceptibility of Compact disc8+ and Compact disc4+ subsets of T lymphocytes LY3009104 ic50 to an infection, and whether monocytes-macrophages had been necessary LY3009104 ic50 for the uptake of influenza trojan by lymphocytes, or simply for the activation from the lymphocytes to circumstances (similar compared to that of mitogen-stimulated cells) that backed the formation of viral protein after unbiased uptake of the disease by those cells. (ampkpathway.com)
Monto ASKoopman JSLongini IM Tecumseh study of illness, XIII: influenza infection and disease, 1976-1981. (jamanetwork.com)

Three of these deaths were associated with an influenza B virus, one was associated with an influenza A (H3) virus, one was associated with a 2009 influenza A (H1N1) virus, and one was associated with an influenza A virus for which the subtype was not determined. (cdc.gov)
WHO and NREVSS collaborating laboratories located in all 50 states and Washington D.C. report to CDC the number of respiratory specimens tested for influenza and the number positive by influenza type and subtype. (cdc.gov)
So, for example, a virus with version 1 of the HA protein and version 2 of the NA protein would be called influenza A subtype H1N2 (A H1N2, for short). (bcm.edu)

Signs and symptoms of influenza include acute onset of some or all of these signs and symptoms: fever or feeling feverish, chills, cough, sore throat, runny or stuffy nose, muscle or body aches, headache, fatigue (tiredness), and sometimes diarrhea or vomiting. (cdc.gov)
Because the signs and symptoms of influenza are not specific and most people who have a respiratory illness are not tested for influenza, ILI has been defined for surveillance purposes as an illness with fever or feverishness plus either cough or sore throat in the absence of another diagnosis . (cdc.gov)
Influenza-like illness (ILI), also known as flu-like syndrome or flu-like symptoms, is a medical diagnosis of possible influenza or other illness causing a set of common symptoms. (wikipedia.org)
citation needed] Influenza-like illness is a nonspecific respiratory illness characterized by fever, fatigue, cough, and other symptoms that stop within a few days. (wikipedia.org)
COVID-19 symptoms are similar to other respiratory diseases with some people developing severe illness. (eaglecounty.us)
Influenza symptoms typically have a sudden onset and can last 5-7 days. (eaglecounty.us)
Clinical symptoms, including fever, cough, and rhinorrhea were similar for RSV and influenza, as were complications, including ACS and treatments for SCD. (duke.edu)
Acute respiratory infections (ARIs) are common in outpatient practice, and the severity of symptoms contributes to the overall burden of illness. (biomedcentral.com)
We hypothesized that adults with laboratory-confirmed influenza would rate their symptoms as more severe relative to adults without influenza, and vaccinated adults with influenza would rate symptoms as less severe than those who were not vaccinated. (biomedcentral.com)
Patients with acute respiratory illness, including feverishness or cough symptoms ≤ 7 days duration, were prospectively enrolled and tested for influenza by reverse transcription polymerase chain reaction (RT-PCR) during influenza seasons 2007-08 through 2010-11. (biomedcentral.com)
Influenza is associated with more severe symptoms of acute respiratory illness. (biomedcentral.com)
Many large observational studies on ARI and influenza-like illness focus on individuals seeking ambulatory medical care, thus a better understanding of the severity of ARI symptoms may improve the interpretability of results of such studies. (biomedcentral.com)
The severity of seasonal influenza symptoms compared to non-influenza ARI has not been extensively studied though. (biomedcentral.com)
Given its role in generating an immune response and the production of antibodies, influenza vaccination may mitigate the severity of some influenza symptoms. (biomedcentral.com)
Both 2009 H1N1 influenza and COVID-19 are respiratory infections that share many symptoms in common. (healthline.com)
But if you have symptoms of flu and are in a high risk group or are very sick or worried about your illness, contact your health care provider. (medlineplus.gov)
The percentage of those testing negative for coronavirus (COVID-19) in England reporting symptoms consistent with influenza-like illnesses (ILI) by age group. (ons.gov.uk)
If you are showing symptoms of an influenza-like illness (ILI), then there are some steps you can take to more closely identify your illness and how to take care of yourself. (vt.edu)
Reports of the illness, which include symptoms ranging from a transverse myelitis syndrome (in a single patient) to pain, numbness, and tingling in the extremities, fatigue, and weakness, were first made public in December 2007 following an investigation by the Centers for Disease Control and Prevention (CDC). (medscape.com)
Most healthy adults who are ill with influenza may be able to infect other people beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick. (texas.gov)
Some persons who are infected with the influenza virus do not have symptoms. (texas.gov)
Healthy individuals exposed to someone with influenza should monitor themselves for a few days to see if they develop symptoms. (texas.gov)
Time to alleviation of major influenza symptoms (Kaplan-Meier estimate). (jamanetwork.com)

There are several influenza vaccine options for the 2015-2016 influenza season (see https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6430a3.htm ), and all available vaccine formulations this season contain A(H3N2), A(H1N1)pdm09, and B virus strains. (cdc.gov)
62% of all influenza A(H3N2) detections have been reported in adults 65 years of age and older. (canada.ca)
Captured in 2011, this transmission electron microscopic (TEM) image depicts some of the ultrastructural details displayed by H3N2 influenza virions, responsible for causing illness in Indiana and Pennsylvania in 2011. (health.mil)
The magnitude of the 2017 influenza season was high in Victoria with widespread circulation of influenza type A(H3N2), which peaked in September. (who.int)
Antigenic characterization suggested a good match between the circulating and vaccine strains of influenza A(H3N2). (who.int)
The dominance of influenza type A(H3N2), the extended duration of elevated activity, and a potential phylogenetic mismatch of vaccine to circulating strains are likely to have contributed to the relative severity of the 2017 season. (who.int)

Vaccination of passengers, especially those at high risk for influenza complications, is recommended at least 2 weeks before cruise ship travel, if influenza vaccine is available and the person has not already been vaccinated with the current year's vaccine. (cdc.gov)
Influenza, RSV, and certain bacterial infections are particularly important causes of ILI because these infections can lead to serious complications requiring hospitalization. (wikipedia.org)
An annual flu vaccine is the best way to protect against influenza and its potentially serious complications. (infectioncontroltoday.com)
Clinicians should encourage all persons with influenza-like illness who are at high risk for influenza complications (see list below) to seek care promptly to determine if treatment with influenza antiviral medications is warranted. (cdc.gov)
is at higher risk for influenza complications. (cdc.gov)
Such individuals may not experience severe health complications, but their illnesses nevertheless account for a significant economic burden in lost workplace productivity [ 16 ]. (biomedcentral.com)
The groups at risk for complications from 2009 H1N1 influenza and COVID-19 have significant overlap. (healthline.com)
however, some individuals develop serious complications or die from influenza. (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)
Individuals at higher risk of complications who have close contact with someone with influenza should contact their medical provider as soon as possible after exposure. (texas.gov)
First, the limited number of children reported in the literature with proven influenza infections would tend to under-represent the incidence of uncommon but serious complications such as death. (amsterdamumc.org)

For more information on influenza vaccine recommendations, see Seasonal Influenza Vaccination Resources for Health Professionals . (cdc.gov)
There are many benefits to vaccination, including reducing the risk of flu illness, doctor's visits, hospitalization, and even death in children. (infectioncontroltoday.com)
Flu vaccination also has been shown to reduce severity of illness among people who get vaccinated but still get sick. (infectioncontroltoday.com)
Vaccination is the best protection from severe illness. (eaglecounty.us)
We evaluated unadjusted and adjusted models with the primary exposures, weekly rate of influenza-like illness hospitalizations, city-wide mortality, and NH influenza vaccination rate and primary outcome of weekly rate of hip fracture hospitalizations. (flutrackers.com)
NH influenza vaccination rates were not associated with changes in hip fracture hospitalization rates. (flutrackers.com)
The association between influenza vaccination and reduced symptom severity in older adults should be confirmed and explored further in other populations and seasons. (biomedcentral.com)
School-located influenza vaccination programs have the potential to mass-vaccinate all enrolled children, but will parents give consent? (medscape.com)
Effectiveness of influenza vaccination of day care children in reducing influenza-related morbidity among household contacts. (jamanetwork.com)

In this study, the data from these three surveillance programmes are used to describe the epidemiology of the 2017 influenza season in Victoria, Australia. (who.int)

Outbreaks of influenza and other respiratory viral diseases can occur at any time of the year among cruise ship passengers. (cdc.gov)
Specific management should include early identification and isolation of crew members and passengers with ILI, encouraging good respiratory hygiene and cough etiquette, use of influenza antiviral medications for treatment of people with suspected or confirmed influenza, and use of antiviral chemoprophylaxis during influenza outbreaks, if indicated, for high-risk people exposed to influenza. (cdc.gov)
The United States has a general surveillance program, a border surveillance program, and a hospital surveillance program, all devoted to finding new outbreaks of influenza. (wikipedia.org)
For this reason countries have set up surveillance systems to continually monitor Influenza like illnesses (ILI) for early detection of outbreaks and rapid response. (edu.gh)
Hopefully, the knowledge gained in response to the H5N1 and 2009 H1N1 outbreaks, and continued research to more completely understand influenza virus, as well as improvements in vaccine and drug development, will enable us to minimize the effects of future influenza outbreaks. (bcm.edu)

Strategies to reduce influenza risk should be investigated possible strategies to reduce hip fracture risk. (flutrackers.com)
Early antiviral treatment can reduce influenza morbidity and mortality. (cdc.gov)
There is some evidence to support the wearing of masks or respirators during illness to protect others, and public health emphasis on mask wearing during illness may help to reduce influenza virus transmission. (cambridge.org)

All three patients had severe pneumonia, developed acute respiratory distress syndrome (ARDS), and died from their illness ( 2 ). (cdc.gov)
Influenza illness may impact the risk of falls and fractures during acute illness due to unsteady gait or dizziness. (flutrackers.com)
Acute respiratory infections (ARIs) collectively represent the most common seasonal illness, affecting adults three times annually on average [ 1 , 2 ]. (biomedcentral.com)
To compare characteristics, clinical evolution and outcome in adult patients with influenza A (H1N1) acute respiratory distress syndrome (ARDS) treated with or without extracorporeal membrane oxygenation (ECMO). (nih.gov)
Middle East respiratory syndrome (MERS) is a severe, acute respiratory illness caused by the MERS coronavirus (MERS-CoV). (msdmanuals.com)

Influenza A(H1N1)pdm09 continues to be the most common influenza virus circulating in Canada. (canada.ca)
86% of all influenza A(H1N1)pdm09 detections have been reported in individuals younger than 65 years of age. (canada.ca)
Influenza A(H1N1)pdm09 occurred actively 3 weeks thereafter, and then co-circulated highly with influenza B through the end of March 2020. (health.mil)
Starting at surveillance week 45 (3-9 Nov. 2019), influenza B was the predominant influenza type, followed by high activity of influenza A(H1N1)pdm09 three weeks thereafter. (health.mil)
Both influenza B and influenza A(H1N1)pdm09 were then highly co-circulated through surveillance week 13 (22-28 March 2020). (health.mil)

Influenza in humans is subject to clinical surveillance by a global network of more than 110 National Influenza Centers. (wikipedia.org)
On March 29, 2013, the Chinese Center for Disease Control and Prevention completed laboratory confirmation of three human infections with an avian influenza A(H7N9) virus not previously reported in humans ( 1 ). (cdc.gov)
Type B influenza is normally found only in humans, and type C is mostly found in humans, but has also been found in pigs and dogs. (bcm.edu)

Figure 1 illustrates trends in ILI incidence rates like illness (ILI) associated with the 2-week school winter among schoolchildren 5-19 years of age and adults break periods in France. (cdc.gov)
Using the electronic Iranian influenza surveillance system and data of cases in sentinel hospitals of 3 selected provinces, we estimated the monthly trend (seasonality) of incidence for SARI and F-SARI, overall incidence of SARI and F-SARI and their disaggregation by age with the aid using the Monte Carlo technique. (who.int)
A systematic review was conducted to estimate the incidence of influenza and concomitant morbidity and mortality in children from 0 to 19 years (0-19 years). (amsterdamumc.org)
However, when analysing two long-term observational studies and averaging seasonal fluctuations, the overall incidence of influenza was found to range from 5% to 9.5% per year. (amsterdamumc.org)

Flu-Associated Hospitalizations: Since October 1, 2018, 5,791 laboratory-confirmed influenza-associated hospitalizations have been reported through the Influenza Hospitalization Network (FluSurv-NET), a population-based surveillance network for laboratory-confirmed influenza-associated hospitalizations covering approximately 9% of the U.S. This translates to a cumulative overall rate of 20.1 hospitalizations per 100,000 people in the United States. (infectioncontroltoday.com)
City-wide influenza mortality was associated with hip fracture hospitalization rates for the unadjusted (IRR 1.03, 95%CI: 1.02,1.04), and adjusted (IRR 1.02, 95%CI: 1.01,1.03) analyses. (flutrackers.com)
This study provides a more accurate view of the hospitalization burden of influenza and RSV. (medscape.com)

Introduction Influenza is a major cause of morbidity and mortality globally especially during pandemics. (edu.gh)
Carrat FTachet ARouzioux CHousset BValleron A-J Field investigation of influenza vaccine effectiveness on morbidity. (jamanetwork.com)

Via The Poultry Site : ' SOUTH KOREA : Low pathogenic avian influenza (LPAI) of the H7N6 sub-type been found in ducks on a farm in th. (blogspot.com)
An article from Mizzima News : ' Chiang Mai : The avian influenza has been detected on a poultry farm in Sittwe in Arakan State, acco. (blogspot.com)

Influenza Vaccine Effectiveness for Prevention of Severe Influenza-Associated Illness Among Adults in the United States, 2019-2020: A Test-Negative Study. (umassmed.edu)
The effectiveness of the influenza vaccine for the 2018-19 season is estimated to be 72% against the predominant circulating strain this season, with significant protection observed in all age groups. (canada.ca)
Further studies in controlled settings and studies of natural infections in healthcare and community settings are required to better define the effectiveness of face masks and respirators in preventing influenza virus transmission. (cambridge.org)
End-of-season influenza vaccine effectiveness (VE) was estimated using a test-negative case-control study design. (health.mil)
Future population based studies should focus on consecutive influenza seasons and capture indirect benefits of vaccinations such as interruption of transmission in the community so that preventive strategies for children can be reconsidered with special attention to their cost effectiveness. (amsterdamumc.org)
Effectiveness of oseltamivir in preventing influenza in household contacts. (jamanetwork.com)

The goal of this study was to compare a participatory influenza-like illness (ILI) surveillance system in Lesotho with COVID-19 case count data, and ultimately to determine whether the participatory surveillance system adequately estimates the case count data. (columbia.edu)
There are three data sources included in the influenza surveillance system. (who.int)
The Victorian Sentinel Practice Influenza Network (VicSPIN) is a surveillance programme of sentinel general practitioners (GPs) that monitors ILI and laboratory-confirmed influenza in the community (previously known as the Victorian General Practice Sentinel Surveillance system). (who.int)

According to this week's FluView report, seasonal influenza activity remains elevated overall and increased again over last week's report. (infectioncontroltoday.com)
The shaded area indicates weeks where the positivity rate was at least 5% and a minimum of 15 positive tests were observed, signalling the period of seasonal influenza activity . (canada.ca)

The influenza A subtypes are further classified into strains, and the names of the virus strains include the place where the strain was first found and the year of discovery. (bcm.edu)

Fever (a temperature of 100°F [37.8°C] or higher) will not always be present in people with influenza, especially not in elderly or immunosuppressed people. (cdc.gov)

We evaluated the association between influenza and hip fracture hospitalizations in long-stay (LS) nursing home (NH) residents. (flutrackers.com)
The association between influenza test result and severity score was examined using linear regression. (biomedcentral.com)

Anyone can get sick with influenza and serious illness can occur to anyone at any age. (eaglecounty.us)
Who is most likely to get sick with influenza? (texas.gov)
Anyone can get sick with influenza. (texas.gov)

Sporadic influenza activity was reported by the U.S. Virgin Islands. (infectioncontroltoday.com)
Puerto Rico, the U.S. Virgin Islands, and two states reported sporadic influenza activity, and Guam reported no influenza activity. (cdc.gov)

Influenza, or flu, is a contagious respiratory illness caused by a virus. (eaglecounty.us)
Flu, or influenza, is a contagious respiratory illness that spreads from person to person through the air via coughs or sneezes or through contact with infected surfaces. (bcm.edu)

All influenza types and subtypes have been identified at high levels this season, and continue to circulate widely. (cdc.gov)
Type A influenza is classified into subtypes depending on which versions of two different proteins are present on the surface of the virus. (bcm.edu)

Notified cases of influenza A were older than influenza B cases with 25% compared to 17% aged more than 65 years, respectively. (who.int)
Notified laboratory-confirmed influenza cases are reported from medical practitioners and laboratory services in Victoria who are required by law to notify DHHS of all laboratory-confirmed cases of influenza within five days of diagnosis. (who.int)

Daily index of sick leave from work among working adults with influenza. (jamanetwork.com)

ABSTRACT There are few estimates of influenza burden in the WHO Region for the Eastern Mediterranean. (who.int)
According to a study, in 2015, seasonal influenza in the United States resulted in an estimated economic burden of $11.2 billion, of which, $8.0 billion were accounted toward indirect costs [ 10 ]. (healthtrackrx.com)
It is worth noting that the annual economic burden of non-influenza viral RTIs accounted for a much higher cost of $40 billion [ 11 ]. (healthtrackrx.com)
Szucs TD Influenza: the role of burden-of-illness research. (jamanetwork.com)

Early detection, prevention, and control of influenza are important, not only to protect the health of travelers on cruise ships, but also to avoid spread of disease into home communities by disembarking sick passengers and crew members. (cdc.gov)
Are minority groups more or less likely to adopt influenza prevention behaviors? (medscape.com)
Inhaled zanamivir for the prevention of influenza in families. (jamanetwork.com)

These centers receive samples obtained from patients diagnosed with ILI, and test the samples for the presence of an influenza virus. (wikipedia.org)
influenza -like illness (ILI) was determined in a population sample derived from an influenza vaccine trial (NCT01051661) in 17 centers in eight countries ( Australia , South East Asia and Latin America ). (bvsalud.org)

A new influenza vaccine is available each year, typically beginning in August or September. (texas.gov)

citation needed] Technically, any clinical diagnosis of influenza is a diagnosis of ILI, not of influenza. (wikipedia.org)
However, antiviral treatment might still be beneficial in patients with severe, complicated, or progressive illness, and in hospitalized patients and in some outpatients when started after 48 hours of illness onset, as indicated by clinical and observational studies. (cdc.gov)
We examined the association between a subjective symptom severity score, demographic and clinical characteristics, and presence of laboratory-confirmed influenza among central Wisconsin adults who sought care for ARI during four influenza seasons. (biomedcentral.com)
Carrat FTachet ARouzioux CHousset BValleron A-J Evaluating clinical case-definitions of influenza: detailed investigation of patients during the 1995-1996 epidemic in France. (jamanetwork.com)

Illness.com does not provide medical advise, diagnosis or treatment. (illness.com)
their influenza diagnosis was made later with molecular assays. (cdc.gov)

What is influenza-associated pediatric mortality? (texas.gov)
Influenza-associated pediatric mortality is reportable by law to the health department. (texas.gov)
Lui K-JKendal AP Impact of influenza epidemics on mortality in the United States from October 1972 to May 1985. (jamanetwork.com)
Carrat FValleron A-J Influenza mortality among the elderly in France, 1980-90. (jamanetwork.com)
Sprenger MJWMulder PGHBeyer WEPVan Strik RMasurel N Impact of influenza on mortality in relation to age and underlying disease, 1967-1989. (jamanetwork.com)
The impact of influenza epidemics on mortality. (jamanetwork.com)

CDC, along with state and local health departments, is continuing epidemiologic and laboratory surveillance for influenza in the United States. (cdc.gov)
Decisions about starting antiviral treatment should not wait for laboratory confirmation of influenza. (cdc.gov)
From October 3, 2010 - February 19, 2011, 8,227 laboratory-confirmed influenza associated hospitalizations and 115 laboratory-confirmed influenza associated deaths were reported to CDC. (cdc.gov)
A total 2,002 laboratory detections of influenza were reported, of which 98% were influenza A. (canada.ca)
Laboratory-based influenza surveillance was conducted in the 2019-2020 influenza season among Department of Defense (DOD) beneficiaries through the DOD Global Respiratory Pathogen Surveillance Program (DODGRS). (health.mil)
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)
Medline was searched for observational studies and placebo or non-treated arms of experimental studies providing occurrence rates of laboratory-proven influenza illness. (amsterdamumc.org)
Surveillance for influenza-like illness (ILI) and laboratory-confirmed influenza in Victoria, Australia is undertaken jointly by the Victorian Infectious Diseases Reference Laboratory and the Victorian Government Department of Health and Human Services from May to October each year. (who.int)
Surveillance data comprise notifiable laboratory-confirmed influenza and ILI reporting from from two sources - a general practice sentinel surveillance programme and a locum service. (who.int)
A record number of laboratory-confirmed influenza cases were notified, and the proportion of ILI cases to total consultations from both the general practice and locum service were higher than previous years. (who.int)
Most of the increases observed in notified cases of laboratory-confirmed influenza in recent years in Victoria have been attributed to increases in testing. (who.int)
The Victorian Infectious Diseases Reference Laboratory (VIDRL), in partnership with the Victorian Government Department of Health and Human Services (DHHS), coordinates influenza-like illness (ILI) and laboratory-confirmed influenza surveillance in Victoria. (who.int)

Sick people should be advised to seek health care if they are at high risk of developing severe illness from influenza or if they are concerned about their illness. (cdc.gov)
Treatment for COVID-19 is available for certain high-risk persons to help prevent severe illness. (eaglecounty.us)
People at higher risk for severe illness include older adults, persons with certain chronic health conditions, pregnant people, and young children. (eaglecounty.us)
However, if you are at increased risk for severe illness or are very sick or worried about your illness, contact your healthcare provider who may recommend treatment. (eaglecounty.us)
In both pandemics, certain groups were at an increased risk for severe illness. (healthline.com)

Pandemics are associated with widespread illness - and sometimes death - even in otherwise healthy people. (bcm.edu)

The objective of this report is to describe influenza surveillance trends and the end-of season VE estimates among DOD beneficiaries during the 2019-2020 influenza season. (health.mil)

Six influenza-associated pediatric deaths were reported bringing to season total to 41. (cdc.gov)

Influenza activity in Canada is declining but influenza continues to circulate with eastern regions continuing to report higher levels of influenza activity compared to western regions. (canada.ca)

When indicated, antiviral treatment should be started as soon as possible after illness onset, ideally within 48 hours of symptom onset. (cdc.gov)

Let's look at some of the similarities between the 2009 H1N1 influenza and COVID-19 pandemics. (healthline.com)
and like influenza pandemics and the need to be prepared, with equitable distribution of benefits. (who.int)

Simonsen LFukuda KSchonberger LBCox NJ The impact of influenza epidemics on hospitalizations. (jamanetwork.com)

Swabs were tested for influenza virus using molecular assays. (edu.gh)

Nationwide during week 38, 2.0% of patient visits reported through ILINet were due to respiratory illness that included fever plus a cough or sore throat, also referred to as ILI. (cdc.gov)

Furthermore, except perhaps during the peak of a major outbreak of influenza, most cases of ILI are not due to influenza. (wikipedia.org)
The reminder followed the CHP's investigation into an influenza-like illness (ILI) outbreak at a kindergarten-cum-child care centre in Sha Tin, affecting 20 students. (blogspot.com)
Second, the preferential reporting of influenza outbreak seasons may over-estimate the importance of influenza. (amsterdamumc.org)

Anatomy13

Organisms38

Diseases28

Chemicals and Drugs43

Analytical, Diagnostic and Therapeutic Techniques and Equipment46

Psychiatry and Psychology9

Phenomena and Processes32

Disciplines and Occupations3

Anthropology, Education, Sociology and Social Phenomena6

Technology, Industry, Agriculture3

Humanities2

Information Science8

Named Groups6

Health Care46

Geographicals16

Viruses36

Positive for influenza4

Pandemic17

Infection16

Subtype3

Symptoms23

H3N26

Complications12

Vaccination9

Epidemiology1

Outbreaks5

Reduce influenza3

Acute5

Pdm095

Humans3

Incidence4

Hospitalization3

Morbidity2

Avian2

Effectiveness6

Surveillance system3

Seasonal influenza activity2

Strains1

People with influenza1

Association between influenza2

Sick with influenza3

Sporadic2

Contagious respiratory illness2

Subtypes2

Cases of influenza2

Adults with influenza1

Burden4

Prevention3

Centers2

Vaccine is available1

Clinical4

Diagnosis2

Mortality6

Laboratory12

Severe illness5

Widespread1

2019-20201

Pediatric1

Circulate1

Onset1

Pandemics2

Epidemics1

Molecular assays1

Cough or sore throat1

Outbreak3