نتایج جستجو برای: sero epidemiology
تعداد نتایج: 106321 فیلتر نتایج به سال:
Background: Hepatitis E virus (HEV) is the causative agent of over 50% acute viral hepatitis cases. The blood transfusion route has emerged as a possible transmission HEV. Objectives: This study aimed to determine seroprevalence IgM and IgG anti-HEV among donors in North Lebanon assess risk factors associated with its occurrence. Methods: A cross-sectional was conducted from November December 2...
Background: We conducted a retrospective literature review of all the data published on Helicobacter pylori in Africa in order to test whether the prevalence of diseases associated with this organism differs from that in developed nations. Methods: Both sero-epidemiological (n = 8) as well as prospective endoscopic studies in subjects with either dyspepsia or epigastric pain (n = 23) and one re...
Health monitoring is an integral part of laboratory animal quality standards. However, current or past prevalence data as well as regulatory requirements dictate the frequency, type and the expanse of health monitoring. In an effort to understand the prevalence of rodent pathogens in India, a preliminary study was carried out by sero-epidemiology. Sera samples obtained from 26 public and privat...
To estimate the sero prevalence of rubella among children attending a tertiary care hospital, in the age group of 1 to 14 years who have not received MMR vaccine.This was a hospital based prospective descriptive study. Blood samples were collected from 50 children aged 1-14 years and analyzed for IgG antibody titres for rubella infection by a quantitative enzyme-linked immunosorbent assay. Data...
Sporadic outbreaks of foot-and-mouth disease (FMD) have occurred in Libya for almost fifty years. During the spring of 2013, a countrywide serosurvey was undertaken to assess the level of FMD virus circulation and identify FMD virus serotypes in the country. A total of 4221 sera were collected, comprising samples from large ruminants (LR; n=1428 samples from 357 farms) and small ruminants (SR; ...
background and aims: ebv is a human herpesvirus that infects more than 90% of the world’s population. although, benign and asymptomatic for most cases, the infection can cause many nonmalignant and malignant disorders of lymphoid and epithelial origins. the objective of this study was detection of im prevalence in neyshabur, northeast iran from 2010-2014. materials and methods: this cross-sec...
A community-based longitudinal study was performed in the Eastern Province of Zambia, in which repeated serological samplings were done to determine the incidence of human cysticercosis. Three sampling rounds were carried out at six months intervals. A total of 867 participants presented for all three samplings. All samples were tested for the presence of cysticercus antigens using a monoclonal...
BACKGROUND In many countries in Asia, the HIV epidemic is in a concentrated phase, with high prevalence in certain risk groups, such as men who inject drugs. There is also a rapid increase of HIV among women. The latter might be due to high levels of sero-discordant couples and increasing transmission from male to female partners over time. METHODS All adult married patients initiating antire...
Geographical Patterns of HIV Sero-Discordancy in High HIV Prevalence Countries in Sub-Saharan Africa
INTRODUCTION Variation in the proportion of individuals living in a stable HIV sero-discordant partnership (SDP), and the potential drivers of such variability across sub Saharan Africa (SSA), are still not well-understood. This study aimed to examine the spatial clustering of HIV sero-discordancy, and the impact of local variation in HIV prevalence on patterns of sero-discordancy in high HIV p...
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