It’s particularly important for people who expect to have any sexual contact or medical procedures abroad to get vaccinated for hep B first, Dr. Though many people will get better in a few weeks, some will get chronic hepatitis B, which can lead to issues like liver failure or cancer. Hep B is not as common as hep A, but it’s much more serious. It can also be transmitted through sharing personal care items (like a razor or toothbrush) or getting a tattoo or piercing from unsterilized equipment. It’s spread through bodily fluids (like blood, semen, or vaginal fluids), most commonly through sexual contact with someone who’s infected (there are an estimated 350 million hepatitis B carriers globally). Hepatitis B is a much more serious liver infection that can be deadly. “It is the most recommended vaccine for travel,” Dr. Pretty much every country in the world recommends travelers get this shot (which, by the way, requires two doses given six months apart, but even one dose provides strong protection). The symptoms, such as fatigue, nausea, and jaundice, can last up to two months (and, for some unlucky people, up to six months). It’s a very contagious liver infection that’s transmitted through contaminated food and water or contact with an infected person. In terms of what these diseases are, let’s start with hepatitis A. There are also shots specifically for hep A and hep B, respectively, if you know you’ve been vaccinated for one, but not the other. You can get this on an expedited schedule too, if you’re up against the clock: Typically this shot is given over the course of six months, but in a pinch, three doses can be administered in 21 days. Hepatitis A and hepatitis B are two very different diseases, both of which can hurt the liver, but there’s a combined hep A/hep B vaccine that you can get if you haven’t been immunized against either one (or just don’t know what you’ve been vaxxed for in the past).
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