How to prevent acute hepatitis? We need to understand the transmission route of acute hepatitis and start by blocking the transmission route, so that we can achieve the greatest prevention. There are three main ways of transmission of acute hepatitis B: blood transmission; vertical transmission from mother to child; and sexual transmission. Acute hepatitis B is not transmitted through the digestive and respiratory tracts, so daily contact such as shaking hands, hugging, working together, eating together, etc. generally does not spread acute hepatitis. The only way to prevent hepatitis B is to avoid exposure to the virus, and this is quite difficult or completely impossible to do. Experts believe that the hepatitis B vaccine can substantially reduce hepatitis infection. In addition, prevention methods, such as the supply of blood products must undergo rigorous testing to make sure that they do not contain any hepatitis virus; people belonging to high-risk groups and those suffering from hepatitis should not donate blood, etc. It is advisable for healthy people to be vaccinated against hepatitis as this is the safest guarantee. Secondly, mother-to-child transmission of hepatitis B should be interrupted.