To investigate Crimean-Congo hemorrhagic fever virus in Turkey, we conducted a seroepidemiologic survey during January-April 2009. Seroprevalence of infection was 10% in a sample from an outbreak region and increased with patient age, indicating that the virus had been previously present in Turkey. We also estimated that 88% of infections were subclinical.

Chlamydia pneumoniae is a ubiquitous pathogen that causes acute respiratory disease. The spectrum of C. pneumoniae infection has been extended to atherosclerosis and its clinical manifestations. Seroepidemiologic studies have associated C. pneumoniae antibody with coronary artery disease, myocardial infarction, carotid artery disease, and cerebrovascular disease. The association of C. pneumonia...

BACKGROUND In influenza epidemiology, analysis of paired sera collected from people before and after influenza seasons has been used for decades to study the cumulative incidence of influenza virus infections in populations. However, interpretation becomes challenging when sera are collected after the start or before the end of an epidemic, and do not neatly bracket the epidemic. METHODS Seru...

A comprehensive seroepidemiologic study was conducted in two Red Cross regions (Los Angeles and Miami) to determine the prevalence of Trypanosoma cruzi antibodies in at-risk blood donors, to identify additional risk factors, and to assess the likelihood of transmitting T. cruzi by transfusion. At-risk and control donors were stratified by a broad risk question, tested for T. cruzi antibodies, a...

Over the past eight years an increasing number of investigators have found SV40 genomic sequences in a variety of human samples, both malignant and normal. Tumor types recurrently reported as SV40-positive include choroid plexus neoplasms, ependymomas, osteosarcomas, and mesotheliomas. Nonetheless, considerable skepticism that SV40 is a human pathogen still prevails. More constructively, the st...

Microsporidia are spore-forming obligate intracellular parasites. They are known to cause opportunistic infections in humans through zoonotic, waterborne and foodborne transmission routes. This article reviews the present knowledge regarding microsporidian Encephalitozoon cuniculi infections in animals living in the human environment in Japan and discusses the basic measures required for the ef...

objectives: to generate synthesized information on the epidemiology of vzv infection, as well as an estimation of prevalence of age-specific antibody in iranian less than 40. material and methods: after exclusion of irrelevant and overlapping reports, 15 papers were included (from nine major cities). studies were pooled according to the heterogeneity test results. random effect model methods we...

Seroepidemiologic studies in developing countries show a high rate of Helicobacter pylori (H. pylori) infections in children, in contrast to developed countries. The aim of this study was to evaluate the prevalence of H. pylori in children and teenagers in Tabriz, northwest of Iran. In this prospective study 44 children and teenagers were randomly selected to study serum IgG against H. pyl...