What I Need to know about Hepatitis B

ISBN-13: 9781492792321 / Angielski / Miękka / 2013 / 30 str.

U. S. Department of Health and Services

Opis

Hepatitis B is a virus, or infection, that causes liver disease and inflammation of the liver. Viruses can cause sickness. For example, the flu is caused by a virus. People can pass viruses to each other. Inflammation is swelling that occurs when tissues of the body become injured or infected. Inflammation can cause organs to not work properly.