نتایج جستجو برای: seroepidemiologic studies
تعداد نتایج: 1426357 فیلتر نتایج به سال:
OBJECTIVES The zoonotic potential of H3N8 canine influenza virus (CIV) has not been previously examined; yet considering the popularity of dogs as a companion animal and the zoonotic capabilities of other influenza viruses, the public health implications are great. This study aimed to determine the seroprevalence of antibodies against CIV among a US cohort. DESIGN A cross-sectional seroepidem...
Epidemiological studies of zoonotic influenza and other infectious diseases often rely upon analysis of levels of antibody titer. In most of these studies, the antibody titer data are dichotomized based on a chosen cut-point and analyzed with a traditional binary logistic regression. However, cut-points are often arbitrary, particularly those selected for rare diseases or for infections for whi...
BACKGROUND Little is known about HEV seroprevalence and its determinants in Iran. Considering the fact that Iran is among the countries in which HEV infection is endemic, a large-scale population-based study in this regard is justified. METHODS This survey was conducted in 2006 in Tehran and Golestan Provinces, Iran. Stored sera of subjects were tested for serological markers of anti-HEV. The b...
While seroepidemiologic studies first suggested a possible association of prior infection with Chlamydia pneumoniae and atherosclerotic risk, the contribution of seroepidemiologic studies of C. pneumoniae and atherosclerotic risk remains a source of controversy, in part because the reported findings appear inconsistent. In general, cross-sectional studies of C. pneumoniae and atherosclerotic ri...
BACKGROUND We determined influenza A(H1N1)pdm09 antibody levels before and after the first wave of the pandemic in an urban community in Dhaka, Bangladesh. METHODS We identified a cohort of households by stratified random sampling. We collected baseline serum specimens during July-August 2009, just prior to the initial wave of the 2009 pandemic in this community and a second specimen during N...
background: brucellosis is a major zoonosis worldwide. many people for their professions are at higher risk of contracting the disease. objective: to determine the seroprevalence of brucellosis and its risk factors in a group of high risk professions. methods: in a cross-sectional study, all personnel or students of veterinary schools, slaughters and butchers working in the city were invited to...
background mumps, measles and rubella viruses lead to various kinds of complica- tions such as meningoencephalitis, deafness, congenital abnormalities and even cause mortality in malnourished patients,. since 2004, mmr vaccination in two series of one year of age and four to six years has been administered to iranian children as a part of routine vaccination program. recently, mmr vaccination s...
background hepatitis a is often asymptomatic in children, however it can become a serious disease in adults. for countries that do not have a universal vaccination strategy targeted vaccination for high risk groups is recommended. health workers could be at a higher risk of infection with hepatitis a virus (hav) compared to the general population. the aim of this study is to investigate the ser...
conclusions as it was previously reported by the world health organization (who) on hav infection in the country, this study revealed a high prevalence of hav infection in mashhad. background hepatitis a virus (hav) is the most common cause of acute viral hepatitis worldwide, mostly in developing countries. objectives this population-based survey was performed to investigate hav seroprevalence ...
conclusions the current study indicates increased risk for hcv infection in patients under dialysis and its relation with the mean duration of hemodialysis, history of renal transplantation and surgical intervention. considering the immune deficiency in these patients, intense education to both patients and medical staff will be beneficial. patients and methods a retrospective analysis was perf...
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