Jul 1, 2009
commented on Savage Love
Hepatitis B gets around a lot easier than other STD's, which is why kids get vaccinated. Chronic hepatitis B is a problem in Asia and shared utensils, pre-chewing of kids' food, and breast feeding are thought to contribute to this. (Hep B has also been transmitted via microscopic breaks in a surgeon's glove after tying knots when sewing shut an incision - yikes.) Casual household contact with a Hep B carrier or actively infected individual is considered a risk factor for transmission and vaccination is recommended for those individual.
Like everything else in like, the hepatitis B vaccine is not 100% effective and there are some non-responders, despite getting a few rounds of vaccines.