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...

conclusions the seroprevalence of hev infection found in rural durango is higher than those reported in other mexican populations. consumption of untreated water is an important factor for hev exposure in rural areas in durango. the correlates of hev seropositivity found in the present study can be used for an optimal planning of preventive measures against hev infection. results one hundred (3...

BACKGROUND Infection with human papillomavirus (HPV) type 16 has been implicated as a risk factor for esophageal squamous cell carcinoma in three seroepidemiologic studies. We conducted a larger, population-based study to verify this association and to investigate possible confounding factors. METHODS We performed a nationwide case-control study in Sweden of HPV16 or HPV18 infection and risk ...

background: health care workers (hcw) are at high risk of contracting various infectious diseases and play a dual role in the transmission of infections in health care facilities. objective: to determine the seroprotection against hepatitis b, measles, rubella, and varicella among hcws in a community hospital in qatar. methods: this is a cross-sectional survey conducted in a 75-bed community ho...

A reverse-sandwich enzyme-linked immunosorbent assay (ELISA), in which an antibody is sandwiched by antigens, was established for the titration of antibodies to verocytotoxins (VT) in human and animal sera. This assay has two advantages over a conventional indirect ELISA: (i) higher specificity and sensitivity and (ii) the ability to comparably titrate antibodies from different species. The VT1...

Hydatidosis or hydatide cyst,caused by the larvae of Echinoconccus granulosus,is one of the most serious tapeworm cestodes infection occuring in man and in livestock in Iran.the present study was carried out in order to determine the rate of infection in shahriar Area,in which no study has been conducted regarding this enfection.1052 human blood sample from different age groups were collected b...

A seroepidemiologic survey of Plasmodium vivax and Plasmodium falciparum transmission was conducted in 94 Orang Asli children and adults. The prevalence of malaria was 46% in this population, and infections due to P. vivax and P. falciparum occurred with equal frequency. Multi-species infection was common, particularly in children less than 10 years of age. Circumsporozoite (CS) antibodies to P...

feline leukemia virus is a retrovirus of domestic cats that occurs throughout the world. persistent infection in the animals and persistently infected cats are at risk for developing of fatal diseases such as: lymphoma, leukemia, haematopoietic malignancies and anemia. in this study as the first time in iran the serologic prevalence of feline leukemia virus was determined with commercial elisa ...

A seroepidemiologic survey of Coxiella burnetii in cattle and chickens in Thailand was carried out using indirect fluorescent antibody test. Nine of the 130 serum samples from cattle were positive for antibodies against C. burnetii, with antibody titers ranging from 32 to 64. Only one of 113 serum samples from chickens was seropositive, with antibody titer of 16. No C. burnetii-specific DNA was...