Evaluate seroepidemiologic studies. Medical search. Frequent questions

A study funded and led by the CITF, published in CMAJ , found that as of March 2023, over 75% of people in Canada had antibodies due to a SARS-CoV-2 infection. (covid19immunitytaskforce.ca)
In a study now published in Infectious Diseases , CITF-funded researchers from Héma-Québec reported on the development of a novel analytical approach to detect recent SARS-CoV-2 infections based on anti-nucleocapsid antibodies. (covid19immunitytaskforce.ca)
Seroepidemiologic studies have shown that antibodies to caliciviruses are present in 50-90% of children younger than 2 years in Kuwait, Italy, Kenya, China, London, and South Africa. (medscape.com)
This study was to explore to explore the outcomes of IgG antibodies to SARS-CoV-2 in four groups of individuals in Wuhan, China. (researchgate.net)
This information is in contrast to a study in Wuhan, China that found 10% of patients lost SARS-CoV-2 antibodies within weeks of infection (12) , although different serology tests were used in this case. (researchgate.net)
We estimated the population prevalence of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), including unreported infections, through a Korea Seroprevalence Study of Monitoring of SARS-CoV-2 Antibody Retention and Transmission (K-SEROSMART) in 258 communities throughout Korea. (e-epih.org)
The K-SEROSMART represents the first nationwide, community-based seroepidemiologic survey of COVID-19, confirming that most individuals possess antibodies to SARS-CoV-2 and that a significant number of unreported cases existed. (e-epih.org)
A meta-analysis including 39 studies in China from 1954 to 2010, based on the seroprevalence of hepatitis B surface antigen (HBsAg), and/or antibodies against HCV (anti-HCV) in HCC patients, reported that about 70% of HCC was associated with HBV infection alone, 5% with HCV infection alone, and 6% with HBV & HCV co-infection. (oaepublish.com)

In a potential epidemic of an emerging infection, representative population-based serologic studies are required to determine the extent of immunity to the infectious agent, either from natural infection or vaccination. (biomedcentral.com)
Within a seroepidemiologic study to determine the true burden of SARS-CoV2 infection in two Bay Area counties, we evaluated whether letter (L) or postcard (P) invitations with reminders were more effective at recruiting participant households. (biomedcentral.com)
In the context of a possible epidemic, where public health response and planning, policy decisions and pandemic preparedness strategies are required, population-based, longitudinal serologic studies are necessary, both to determine the extent of immunity - either naturally acquired or from vaccination-and to evaluate the pace of infection and immunity acquisition [ 2 , 3 ]. (biomedcentral.com)
We implemented a series of seroepidemiologic studies to determine the true burden of SARS-CoV2 infection in two Bay Area counties in California, and anticipated that response rates to an unsolicited invitation to participate in serologic testing for SARS-CoV2 would likely have a better response than that typical for unsolicited mailings, purported to range from 2.7% to 4.4% [ 13 ]. (biomedcentral.com)
Objective To estimate the infection fatality rate of coronavirus disease 2019 (COVID-19) from data of seroprevalence studies. (researchgate.net)
Infection fatality rate was estimated from each study dividing the number of COVID-19 deaths at a relevant time point by the number of estimated people infected in each relevant region. (researchgate.net)
Estimates of infection fatality rates inferred from seroprevalence studies tend to be much lower than original speculations made in the early days of the pandemic. (researchgate.net)
Families from different atitis and its carrier state in regions with a geographical areas were selected to take high prevalence of HBV infection have been part in the studies. (who.int)
We will evaluate the approach in Haiti by measuring the effect of mass drug administration on the force of infection for lymphatic filariasis For all of the methods, we will create user-friendly, open source software to accelerate translation to applied research. (grantome.com)
Infection rates are similar in both sexes, though some studies have noted a slight male predominance [2]. (webmedcentral.com)
Universal T&T has not been previously evaluated as a population intervention for HBV infection, despite high-profile data supporting its success with human immunodeficiency virus (HIV). (ox.ac.uk)
Recent studies provided evidence on the relationship between social status and exposure patterns, the likelihood of diagnosis, and infection outcomes for COVID-19 in Santiago. (biomedcentral.com)
Thus, seroprevalence studies identify the infection burden in communities leading to more appropriate control measures for local epidemic expansion. (biomedcentral.com)
This study is aimed at evaluating the seroprevalence of HB infection and the response to HB booster vaccination amongst young-adult university students who had previously undergone full vaccination during their infancy. (tmu.edu.tw)
This study evaluated a methodology for obtaining information on the prevalence of risk behaviors for human immunodeficiency virus infection (HIV) in the general population. (cdc.gov)
These clinical data based on cohort studies, randomized clinical trials, and clinical practices in the Chinese population provide important information on prevention of liver cancer, particularly HCC, by preventing chronic HBV infection starting from birth for other populations. (oaepublish.com)
This prospective, cross-sectional seroprevalence study determined the proportion of Cambodian children infected by these pathogens and the ages at which initial infection is likely to occur. (ox.ac.uk)
These findings are consistent with a Norwegian study that reported detection of HBoV alone and a high-viral-load were associated with respiratory tract infection. (datexis.com)
Previous studies have reported that HBoV infection was more prevalent among individuals who had other respiratory viruses [10, 22]. (datexis.com)

To evaluate the efficacy of the programme, 2 large seroepidemiologic surveys were conducted before and after mass vaccination on a representative sample of 1/1000 of the population. (who.int)
RÉSUMÉ La vaccination de tous les nouveau-nés contre le virus de l'hépatite B est appliquée en République islamique d'Iran depuis 1993. (who.int)
In May 1992, study, we assessed the impact of the mass the World Health Assembly, the governing vaccination programme on the carrier rates body of the World Health Organization, en- of HBV in the Iranian population by com- dorsed recommendations stating that all paring the rates before and after the pro- countries should have hepatitis B vaccine gramme began. (who.int)
The objective of this study was to identify the most suitable vaccination strategy for controlling the surge in COVID-19 cases. (e-epih.org)
Eight hundred and forty-three subjects (mean age 18.7 ± 0.4 years), 492 males and 351 females, with a complete HB vaccination during infancy were enrolled into this study. (tmu.edu.tw)
Prior to this program, the Qidong County in China conducted an hepatitis B intervention study, which was a population-based, cluster randomized, controlled trial of HBV vaccination in neonates. (oaepublish.com)

A CITF-funded study, published in Research Synthesis Methods, found that implementing a natural language processing (NLP) tool for abstract screening in a living systematic review of SARS-CoV-2 prevalence was feasible and beneficial in a real-world context. (covid19immunitytaskforce.ca)
AIM: The aim of this study was to assess the prevalence of vitamin D insufficiency and deficiency and compare it with the incidence rates of SARS-CoV-2 in eight Federal Districts of the Russian Federation. (bvsalud.org)

OBJECTIVE: The aim of this paper is to provide a detailed description of the topics most frequently studied in epidemiology by young people and to highlight any changes in these topics in the pre- and post-Covid-19 workplaces. (bvsalud.org)
CONCLUSIONS: The unique data set collected in this study highlights how regional epidemiology data for HBV can provide insights into patterns of transmission, and it provides an evidence base for future quantitative research into the most effective local interventions. (ox.ac.uk)

A CITF-funded study, published in preprint and not yet peer-reviewed, found that the reporting of SARS-CoV-2 seroepidemiologic studies needs improvement, particularly in providing adequately detailed information about laboratory methods. (covid19immunitytaskforce.ca)
Methods Population studies with sample size of at least 500 and published as peer-reviewed papers or preprints as of May 12, 2020 were retrieved from PubMed, preprint servers, and communications with experts. (researchgate.net)
My long-term career goal is to become a leader in the application of novel statistical methods to target and evaluate interventions that reduce the burden of enteric infections and neglected tropical diseases (NTDs) in low-income countries. (grantome.com)
Aims and Methods: The overarching goal of this research is to develop a methodologic framework to translate antibody response measured in cross-sectional surveys into measures of transmission intensity for enteric pathogens (7 included in the study, e.g. (grantome.com)
METHODS: A scoping review that included observational studies and randomized clinical trials (RCTs) was performed. (bvsalud.org)
Methods: This is a prospective comparative study conducted at the University of Maiduguri Teaching Hospital (UMTH). (bvsalud.org)
molecular diagnostic methods were used for the detection of other respiratory viruses in the other studies whereas we used virus culturing. (datexis.com)

Overall, each model has its advantages and disadvantages and is differentially suited for studies of dengue pathogenesis and immunopathogenesis and/or pre-clinical testing of antiviral drugs and vaccines. (mdpi.com)
The results of this study suggest that in Cambodian children presenting with undifferentiated febrile illness, dengue should be considered high in the list of differential diagnoses, and empirical anti-rickettsial antimicrobial therapy may be more indicated in 8- to 15-year-olds. (ox.ac.uk)

These 2 large- chronic liver disease and thus to mortality scale studies were conducted on a 1/1000 from HBV [ 8 ]. (who.int)

In this study, we investigated anti-spike IgG antibody responses and correlates of protection after second doses of ChAdOx1 or BNT162b2 vaccines for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the United Kingdom general population. (cdc.gov)

Seroprevalence studies provide an accurate measure of SARS-CoV-2 spread and the presence of asymptomatic cases. (biomedcentral.com)

Association between maternal haemoglobin concentrations and maternal and neonatal outcomes: the prospective, observational, multinational, INTERBIO-21st fetal study. (the-incubator.org)

CITF-funded researchers at Héma-Québec, led by Drs. Marc Germain and Dr. Renée Bazin, published a preprint, not yet peer reviewed, reporting on the characteristics of the plasma donors whose samples are used to study COVID-19 immunity in Quebec. (covid19immunitytaskforce.ca)
A mathematical model was developed to concurrently evaluate the immunity levels induced by vaccines and infections. (e-epih.org)
Here, with the aim of providing information on ZIKV circulation and population immunity, we conducted a seroprevalence study among blood donors in Vientiane, Laos. (ox.ac.uk)

A cohort study was conducted for all 2,865 customers who visited restaurant A from June to July. (e-epih.org)

Implementation of a nationwide ZIKV surveillance network and epidemiological studies throughout the country is needed. (ox.ac.uk)
The current study presents the results of an epidemiological investigation and outlines the supplementary measures that would help with hepatitis A control. (e-epih.org)

Studies of alpha- and betaherpesviruses show that adult herpesviruses comprise three unique structural layers plus an inner DNA core. (monthion.com)

Morphologic abnormalities can be minimal, and studies demonstrate that rotavirus can be released from infected epithelial cells without destroying them. (medscape.com)

Among study participants, their families and occasionally migrant laborers. (cdc.gov)
Design, Setting, and Participants: This cross-sectional study used clinical visit information from the divisions of Internal Medicine and Family Medicine in a single large medical care system. (bvsalud.org)
We identified 96 studies representing 39 African countries, with a median cohort size of 370 participants and a median participant age of 34 years. (ox.ac.uk)
Aset of structured, pretested and self-administered questionnaire was used to obtain relevant information from the study participants. (bvsalud.org)
From the study cohort, 155 participants (5.4%) had confirmed hepatitis A. The epidemic curve was unimodal, and the median number of days from the restaurant visit to symptom onset was 31 days. (e-epih.org)

Socio-economic factors and the outcomes of this seroprevalence study enable us to identify priority areas for intervention. (biomedcentral.com)

In this longitudinal multi-institutional study, we applied multi-omics (analysis of soluble biomarkers, proteomics, single-cell gene expression and immune repertoire analysis) to profile children with COVID-19 (n? (cdc.gov)

This study evaluated the annual fluctuations in chigger mite populations and Orientia tsutsugamushi infections in South Korea. (ophrp.org)

However, clinical cases or serop- have been performed to identify human exposure revalence studies for CCHFV have not been reported to CCHFV caused by wild animal contact, despite in Myanmar, likely because active surveillance in hu- serologic evidence for exposure to CCHFV in nu- mans or animals has not been established ( 3 ). (cdc.gov)
This is the earliest documented COVID-19 study with RT-PCR, serology, and pre-exposure test data on the entirety of the exposed population (n=333). (health.mil)

Due to large numbers of HBV-infected pregnant women with high viremia in China, clinical studies in which antiviral therapy with the nucleot(s)ide analogues was given to HBV-infected pregnant women have provided important evidence that such therapy can reduce the risk of mother-to-child HBV transmission. (oaepublish.com)

Glomerular filtration rate (GFR) is an important renal function test for evaluating progress of sickle cell nephropathy, however, this is seldom done to HbSS patients especially in the insurgency that devastated the North-eastern part of Nigeria, where displacement of people has led to increase in diarrhoeal diseases with its complications which also contributes to renal diseases, hence the need for this study. (bvsalud.org)

This study sought to assess the knowledge and practices of medical doctors regarding Monkey pox. (bvsalud.org)

Using broadly reactive reverse-transcription polymerase chain reaction for calicivirus to study stool specimens from children with acute gastroenteritis, studies have found these viruses in 7-22% of cases. (medscape.com)

Furthermore, this study lays the foundation for a surveillance system to continuously monitor transmission at the community level and the response to COVID-19. (e-epih.org)
Every year, the Department of Defense (DOD) Global Respiratory Pathogen Surveillance Program (DODGRS) performs routine respiratory pathogen surveillance among DOD service members and their beneficiaries, and evaluates influenza VE. (health.mil)

Results Twelve studies were identified with usable data to enter into calculations. (researchgate.net)
The study is constrained by gaps in the published data, such that we could not model the impact of antiviral therapy based on stratification by specific clinical criteria and our model framework does not include explicit age-specific or risk-group assumptions regarding force of transmission. (ox.ac.uk)
However, in our study, similar detection rate of HBoV was observed in the samples positive and negative for other respiratory viruses in the R-mix culture (Data are not shown). (datexis.com)

The K-SEROSMART represents the first nationwide, community-based seroepidemiologic survey of COVID-19. (e-epih.org)

Studies also suggest that one of the nonstructural viral proteins may act as an enterotoxin, promoting active chloride secretion mediated through increases in intracellular calcium concentration. (medscape.com)
This study highlights the value of rapid, onboard diagnostic testing to quickly identify an outbreak and enumerate cases, as well as the serological testing to flag potential cases missed with standard viral case identification methodologies. (health.mil)
In that study, patients with a high-viral-load in NPAs developed viremia more frequently than the patients with a moderate-or a low-viral-load did. (datexis.com)
In our study, HBoV-positive patients in the high-viral-load group showed significantly higher pulse rates and respiratory rates than the in the low-viral-load group. (datexis.com)

The study population consisted of age and sex matched HbSS subjects in steady state and children with haemoglobin AA genotypeaged 3-14 years. (bvsalud.org)

This presentstudy evaluated the seroprevalence of the virus among pregnant women attendingantenatal clinic at Federal Teaching Hospital Ido-Ekiti, Nigeria. (brighton.ac.uk)

Multiplex PCR in this study showed admissible sensitivity and specificity for the detection of E. histolytica , G. intestinalis , and Cryptosporidium spp. (ac.ir)
In a study performed in Hong Kong, a higher detection rate of HBoV was observed in NPAs positive for common respiratory viruses than in those that were negative for the same. (datexis.com)

This research focus and career objective build from my experience and from a growing collaboration with Dr. Patrick Lammie at the US Centers for Disease Control (CDC) that started in 2013 and has introduced me to seroepidemiologic research. (grantome.com)

Results: Results obtained from this study showed prevalenceof 87.9% and 7.8% for IgG and IgM respectively. (brighton.ac.uk)
I know it's not very satisfying, but I would strongly suspect that someone has done a seroepidemiologic study and not published these results, since they're exactly what physicians have been taught since before Hippocrates: a dog bite followed by the characteristic illness leads (almost inevitably) to death. (stackexchange.com)

Study group rier rates in the Middle East are maintained. (who.int)

A seroepidemiologic study of HBoV showed that 5.6-83.3% of children aged 6 months-3 yr were seropositive for HBoV. (datexis.com)

Some studies also found the relationship between iCCA and HBV or HCV [ 4 ] , although their causal effects need to be further confirmed. (oaepublish.com)

Additional long-term follow-up studies are needed for young adults initially vaccinated for HB in their infancy. (tmu.edu.tw)

Researchers showed that there was a median adherence to reporting items of 48% per study, as evaluated via the Reporting of Seroepidemiologic studies-SARS-CoV-2 (ROSES-S) guideline. (covid19immunitytaskforce.ca)

Studies on blood donors were included, but studies on healthcare workers were excluded. (researchgate.net)
Zika virus seroprevalence observed in the studied blood donors was low, 4.5% in 2003-2004 with an increase in 2015 to 9.9% (P = 0.002), possibly reflecting the increase of ZIKV incident cases reported over this period. (ox.ac.uk)

Conclusion: With the information provided in this study,there is need for the adoption of CMV screening into the antenatal profiletests, more public awareness of the virus to educate the general publicespecially women on how it is acquired and contributing factors like personaland community hygiene as preventive approaches to avert future consequences. (brighton.ac.uk)
The main goal of this study was to determine Bovine Herpes virus type 1 BHV1antigen in formalin-fixed paraffin-embedded lung tissue of pneumonic sheep, using immunohistochemistry (IHC) staining method. (ac.ir)

The studies were assessed for design features and seroprevalence estimates. (researchgate.net)

These are two areas where additional training will open up significant and unique opportunities for me to make meaningful contributions to seroepidemiologic research, and will enable me to launch an independent career as a productive faculty member at UC Berkeley. (grantome.com)

Medical records of 108 anti-U3 RNP-positive and 2,471 anti-U3 RNP-negative SSc patients first evaluated during 1985-2003 were reviewed. (nih.gov)
Sixteen patients (ten with one or more intestinal fistula) developed abdominal wall dehiscence were included in this study. (who.int)

however, for H3N2_D, the seroprevalence declined by the end of the study period. (ncsu.edu)
During the study period, approximately one-fifth (20.1%) of the incident AP cases experienced a recurrent attack of AP. (health.mil)
A total of 581 (9.0%) of the AP cases received a subsequent incident diagnosis of CP during the study period. (health.mil)
The study was conducted over a period of 6 months. (bvsalud.org)

Organisms1

Diseases1

Chemicals and Drugs3

Analytical, Diagnostic and Therapeutic Techniques and Equipment3

Information Science1

Health Care2

Antibodies8

Infection19

Vaccination6

Prevalence2

Epidemiology2

Methods7

Dengue2

Mortality1

Antibody1

Seroprevalence studies1

Observational1

Immunity3

Cohort study1

Epidemiological2

Adult1

Demonstrate1

Participants5

Intervention1

Longitudinal1

Infections1

Exposure2

Clinical studies1

Diseases1

Assess1

Specimens1

Surveillance2

Data3

Survey1

Viral4

Population1

Pregnant women1

Detection2

Objective1

Results2

Rates1

Children1

Found1

Young1

Median1

Blood2

Virus2

Estimates1

Unique1

Patients2

Period4