نتایج جستجو برای: hepatitis b viruses
تعداد نتایج: 1033342 فیلتر نتایج به سال:
INTRODUCTION The history of viral hepatitis goes back thousands of years and is a fascinating one. When humans were first infected by such agents, a natural repetitive cycle began, with the capacity to infect billions of humans, thus decimating the population and causing sequelae in thousands of lives. METHODS This article reviews the available scientific information on the history of viral h...
DNAs from four wild chimpanzees (Pan troglodytes schweinfurthi) from eastern Africa were screened for 14 DNA viruses and retroviruses. Between two and three viruses were found in each animal. An entire hepatitis B virus (HBV) genome was amplified and sequenced from samples taken from one animal. This indicates that HBV is distributed across the entire range of chimpanzee habitats.
Background: Superinfection of hepatitis A in chronic hepatitis B and C may worsen the course of disease. This study attempted to study frequency of hepatitis A virus antibodies in patients with hepatitis B and hepatitis C. Materials and methods: 115 hepatitis C and 56 hepatitis B patients who visited the Hepatitis Association of Hamedan province during 2004-2005 were enrolled. Hepatitis A viru...
INTRODUCTION Chronic hepatitis is a liver disease in the form of continuous inflammation and necrosis for at least 6 months. There are many causes of chronic hepatitis, including genetic disorders, drugs, toxins, autoimmune, idiopathic; but the most common cause is viral. The virus that causes chronic viral hepatitis is the hepatitis B virus (HBV), hepatitis C virus (HCV), as well as hepatitis ...
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