food borne viral infections are recognized increasingly as human illneses. hepatitis a virus (hav) is an important pathogen which has been responsible for water and many food – borne outbreeks especially milk . in this study for approaching to best diagnosis method of hav in milk by elisa technique, various dilutions of hav antigen (1 ml/l, 10-3 ml/l, 10-6 ml/l, 10-9 ml/l) were added to uht mil...

background: hepatitis a virus (hav) is a single strand and non-enveloped rna virus. it is usually transmitted by the fe­cal-oral and the blood transfusion routes and causes the hepatitis a disease. clinically, the hepatitis a is usually mild, par­ticularly in children, in whom it is frequently subclinical. the disease is more serious and prolonged in adults. the objective of this study was to f...

Background and Objective: Hepatitis A virus (HAV) and hepatitis E virus (HEV) are both transmitted by the fecal-oral route and are known as leading causes of acute viral hepatitis in the world, especially in developing countries. There is a lack of updated data on HAV and HEV seroprevalence in the north of Iran. This study aimed to determine the seroprevalence of HAV and HEV among blood donors ...

objectives: patients with hepatitis c virus infection are at high risk of getting hepatitis a virus. hepatitis a virus is an important widespread virus that usually causes more severe medical consequences in patients with chronic liver disease. the purpose of this study was to evaluate prevalence of hepatitis a virus antibody in patients with chronic hcv in isfahan province, iran. methods: a cr...

Background This study investigated the prevalence for hepatitis A virus (HAV), hepatitis E virus (HEV), herpes simplex virus type 2 (HSV2) and syphilis among homeless in the city of Tehran.   Methods In this cross-sectional study, 596 homeless were recruited in Tehran. A researcher-designed questionnaire was used to study demographic data. Using enzyme-linked immunoassay, and rapid plasma reagi...

hepatitis a is common in children and usually is a self-limiting disease.  although extrahepatic and hematological immune manifestations following acute hepatitis a virus (hav) infection have rarely been reported, they are frequently observed in other viral hepatitis. in this paper, we report the case of a 3-year-old girl who developed immune thrombocytopenic purpura (itp) and hemolytic anemia ...

OBJECTIVES To evaluate the current seroprevalence of antibodies against hepatitis A virus (HAV) in a sample of schoolchildren above 10 years of age and to determine the prevalence of HAV-induced hepatitis in adults at a tertiary care hospital in northern India between January 1992 and December 2000. METHODS Sera from 276 male and 224 female schoolchildren aged 10-17 years were tested for anti...

Hepatitis A virus (HAV) and hepatitis E virus (HEV) are causative agents of acute viral hepatitis transmitted via the fecal-oral route. Both viruses place a heavy burden on the public health and economy of developing countries. To test the possibility that HAV could be used as an expression vector for the development of a combination vaccine against hepatitis A and E infections, recombinant HAV...