Viral Hepatitis

Viral hepatitis – infectious diseases occurring with the general intoxication and primary liver disease. The term “viral hepatitis” combines two independent forms of major disease – viral Hepatitis A (infectious hepatitis) and hepatitis B (serum hepatitis). In addition, the currently selected group of viral hepatitis, with clinical affinity with viral hepatitis A and B. This group may includes several independent nosological forms and conventionally referred to as hepatitis-A, B. The term “Botkin’s disease” united before hepatitis A and B. The term “viral hepatitis” does not include hepatitis, which observed in other viral diseases. Epidemiology. The source of infection in viral hepatitis is the only man.

In viral hepatitis A pathogen is excreted in the feces. The highest concentration of virus in Kale says at the end of incubation and during preicteric period. At this time the patients present the greatest danger to others. With the jaundice virus in the feces usually can not be found. The blood virus Hepatitis A can be detected for 2-10 days before the first signs of illness, he disappeared in the early days of jaundice period. Sources of infection are often subclinical and anicteric patients with forms of hepatitis. Main transmission of hepatitis A, fecal-oral.

For hepatitis A is characterized by the autumn-winter season, a high proportion of cases among young adults, the frequency of epidemic disease rises after 3-5 years. In hepatitis B infection is the source of chronic carriers of hepatitis B antigen, patients with chronic forms of hepatitis B, as well as patients in the acute stage. In patients with hepatitis B virus in the blood. The virus is found in serum before the onset of clinical symptoms (for 25-45 days). After suffering a hepatitis B in most of the virus disappears from the convalescent serum for 3-4 months.

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