This article is from the Childhood Vaccinations FAQ, by Lynn Gazis-Sax lynng@alsirat.com with numerous contributions by others.
"The estimated lifetime risk of HBV infection in the United States
varies from almost 100% for the highest risk groups to approximately
5% for the population as a whole." (PDR) The CDC estimates about 0.75
- 1 million chronic carriers in the US, and more than 170 million are
estimated worldwide.
 
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