Originally posted by Swiper*
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How could a newborn get infected? Aside from an undetected infection in the mother passing through, the newborn is in a hospital and shit happens. The infection vector can be blood or saliva (though blood is much more effective) so while you and your children may not be IV drug users or sex workers, you are probably people who do things like skin your knees and have scrapes and cuts, shave, brush your teeth, use washcloths and towels, or kiss. Most people infected with Hep B do not know it until they develop symptoms. The CDC estimates that at any point in time more than 80% of people infected are undiagnosed
Because the vaccine works, is safe, and there's no going back if you get exposed and aren't immune, there is no downside to immediate immunization, and the risk of infection, no matter how small, is greater than zero.
"Because the disease can be transmitted by casual contact, and because about 1 million people are infected with hepatitis B virus (many of whom don't know that they have it), it has been hard to control hepatitis B virus infections in the United States. The original strategy (started in the early 1980s) was to vaccinate only those at highest risk (for example, healthcare workers, patients on dialysis, and intravenous drug users). But because the disease can be transmitted to those who are not in high-risk groups, this vaccine strategy didn't work. The incidence of hepatitis B virus disease in the United States was unchanged 10 years after the vaccine was first used! For this reason, the vaccine strategy changed. Now all infants and young children are recommended to receive the hepatitis B vaccine and the incidence of hepatitis B virus infections in the United States is starting to decline. Indeed, the new vaccine strategy has virtually eliminated the disease in children less than 19 years of age. If we stick with this strategy, we have a chance to finally eliminate this devastating disease within one or two generations."
https://www.chop.edu/centers-program...itis-b-vaccine
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