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FDA Approves Combination Vaccine Against Hepatitis A And B.(Brief Article)
2001 JUN 20 - (NewsRx.com & NewsRx.net) --
The U.S. Food and Drug Administration has approved a new combination vaccine that protects individuals 18 years of age or older against diseases caused by the hepatitis A virus (HAV) and the hepatitis B virus (HBV).
The vaccine, called Twinrix, combines two already-approved vaccines, Havrix (Hepatitis A Vaccine, Inactivated) and Engerix-B [Hepatitis B Vaccine (Recombinant)] so that people at high risk for exposure to both viruses can be immunized against both at the same time.
For example, Twinrix is recommended for travelers who, because of certain behaviors or occupations, are at high risk for HBV, and who are visiting countries where there is a high or intermediate rate of both HAV and HBV disease, as defined by the U.S. Centers for Disease Control and Prevention.
HAV infection can be contracted by ingestion of contaminated water or food. Travel to certain areas of the world with poor hygienic conditions or being in places where usual sanitary conditions have broken down, such as a flood region, can increase the risk of HAV infection.
HBV infection is spread through contact with infected blood or other body fluids, through using contaminated needles or having unprotected sex with an infected person. Health care workers are also among those considered at risk.
Areas with a high rate of both HAV and HBV include Africa, parts of South America, and most of the Middle East, South, and Southeast Asia.
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Source: HighBeam Research, FDA Approves Combination Vaccine Against Hepatitis A And B.(Brief...