by Linda Schoene, RN
Hepatitis is an inflammation of the liver usually caused by one of five viruses called A, B, C, D, and E which are all infectious, but by different means. It impairs the normal function of the liver and may cause mild to severe flulike symptoms and jaundice. Toxic substances such as alcohol and excessive amounts of acetominophen (Tylenol) can be causes of non-infectious hepatitis.
Protect Yourself and Others
| What You Need to Know | ||||
|---|---|---|---|---|
| Type | Chronic | How Transmitted | Vaccine | Comment |
| A | No | Primarily by foor or water contaminated by feces of an infected person | Yes, alone or with B | Usually causes mild flulike sypmptons and jaundice. Most people recover completely, but can cause serious illness in some cases. High risk when traveling in developing countries. |
| B | About 5% of adult infections become chronic | Blood and body fluids, usually via unprotected sex or shared needles. Also mother to fetus. | Yes, alone or with A | Symptoms are usually mild and flulike. About 1 million Americans have chronic infections and are carriers. Health care workers are at increased risk. Infants born to mothers with hepatitis B receive a special injection at birth along with the hepatitis B vaccine, which is given to most newborns. |
| C | About 85% of cases are chronic | Blood, usually via transfusion befor 1992 or shared needles | No | Usually mild or no initial symptoms. Symptoms may not appear for 10-20 years. Risk of transmission from blood transfusions is very low due to improved screening and testing. Health care workers are at increased risk |
| D | Yes | Same as B | No | Rare, Only occurs in people with hepatitis B |
| E | No | Same as A | No | Rare in the U.S. |