B15-B19: Viral hepatitis

B16: Acute hepatitis B

Acute hepatitis B is an infectious disease that primarily affects the liver and is caused by the hepatitis B virus (HBV). Contracted through the exposure to infected blood or other bodily fluids, symptoms often appear within 1 to 4 months after exposure and can range from mild to severe. These symptoms may include jaundice (a yellowing of the skin or eyes), fatigue, loss of appetite, nausea, vomiting, and abdominal pain. In some cases, patients may not show any symptoms at all. The progression of acute hepatitis B usually involves the body's immune system fighting the virus, leading to liver inflammation. If not properly managed, this condition can lead to serious health problems such as chronic hepatitis B, cirrhosis (scarring) of the liver, or liver cancer. Please note that hepatitis B cannot be spread through casual contact, such as sharing eating utensils or hugging.