HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
Def; Chronic hepatitis is inflammation of the liver that lasts at least 6 months. Common causes include hepatitis B and C viruses and certain drugs. Most people have no symptoms, but some have vague symptoms, such as a general feeling of illness, poor appetite, and fatigue.
More info;
Chronic hepatitis is a common reason for persistently abnormal liver function tests and forms the background for the development of much cirrhosis and hepatocellular carcinoma. It is defined as persistence of liver injury with raised aminotransferase levels or viral markers for more than 6 months.
