Hepatitis D is spread through blood, but only infects people who already have hepatitis B. The hepatitis D virus greatly increases the chance of severe liver damage. Experts say the virus infects about fifteen million people around the world. They say it also appears in five percent of persons infected with hepatitis B.
Doctors say the best way to prevent hepatitis D is to get vaccine that protects against hepatitis B. Doctors can treat some cases of hepatitis B, C and D. The drugs used are costly, however. But they are less costly than another treatment: getting a new liver.
The fifth virus is hepatitis E. Experts say it spreads the same way as hepatitis A -- through infectious waste. Cases often result from polluted supplies of drinking water. Medical science recognized hepatitis E as a separate disease in nineteen eighty.
Hepatitis E is also found in animal waste. Studies have shown that the virus can infect many kinds of animals.
The W.H.O. says many hepatitis E cases have been reported in Central and Southeast Asia, North and West Africa and Mexico. No vaccines or medicines are effective against hepatitis E. Most people recover, usually in several weeks or months. But the disease can cause liver damage. And, in some cases, hepatitis E can be deadly.
The virus is especially dangerous to pregnant women. Twenty percent of such women living with hepatitis E die in the last three months of pregnancy.
Hepatitis D is spread through blood, but only infects people who already have hepatitis B. The hepatitis D virus greatly increases the chance of severe liver damage. Experts say the virus infects about fifteen million people around the world. They say it also appears in five percent of persons infected with hepatitis B.Doctors say the best way to prevent hepatitis D is to get vaccine that protects against hepatitis B. Doctors can treat some cases of hepatitis B, C and D. The drugs used are costly, however. But they are less costly than another treatment: getting a new liver.The fifth virus is hepatitis E. Experts say it spreads the same way as hepatitis A -- through infectious waste. Cases often result from polluted supplies of drinking water. Medical science recognized hepatitis E as a separate disease in nineteen eighty.Hepatitis E is also found in animal waste. Studies have shown that the virus can infect many kinds of animals.The W.H.O. says many hepatitis E cases have been reported in Central and Southeast Asia, North and West Africa and Mexico. No vaccines or medicines are effective against hepatitis E. Most people recover, usually in several weeks or months. But the disease can cause liver damage. And, in some cases, hepatitis E can be deadly.The virus is especially dangerous to pregnant women. Twenty percent of such women living with hepatitis E die in the last three months of pregnancy.
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