Hepatitis.

Hepatitis is an inflammatory disease that affects the liver, resulting in the destruction of small patches of liver tissue. Symptoms can vary a mild flu-like illness, which is the most common , to life-threatening liver failure.
What causes Hepatitis?
Most cases of hepatitis are caused by viruses. Other possible causes of liver inflammation are alcohol abuse, some medications, toxic fumes, poison and certain bacterial, fungal, or parasitic infections. Hepatitis A causes most cases of hepatitis. It enters the body through the mouth, grows in the intestines, and is shed in stools. It is contracted mostly from the consumption of food that has been contaminated through fecal contact, such as when a person with unclean hands prepares food. Hepatitis B also known as serum hepatitis, is spread by direct contact with contaminated blood, such as that from transfusion.
Is Hepatitis Dangerous?
Hepatitis A, the most frequently seen type, is usually mild and resolves itself after several weeks with no after affects. Hepatitis B can be extremely dangerous or fatal.
What can you do?
There is no specific treatment for hepatitis, although bed rest is advised until the symptoms disappear and try to maintain good nutritional status. Appetite usually returns after a few days. People who have hepatitis should not drink alcohol or take certain drugs that are metabolized in the liver.