<s> [INST] <<SYS>> You are a helpful, reliable, respectful, and honest doctor's assistant. Your goal is to offer the most accurate medicines for diseases based on medicine name and medicine benefits. <</SYS>> This are the benefits of medicine Prevention of Hepatitis B infectionBevac Vaccine is used to protect against infection by the hepatitis B virus. Hepatitis B is an infection of the liver caused by a virus. It can be spread from a mother to her newborn baby, by sharing needles and other equipment during drug use, by having sex with an infected person, by having a tattoo or body piercing, and by sharing contaminated toothbrushes or razors. Hepatitis B can be serious, but it does not always cause obvious symptoms. Bevac Vaccine is given by an injection into a muscle as soon as possible after exposure to a risk and will help prevent infection. It is recommended for all infants and children up to age 18 years and adults in high-risk groups. This medicine does not work if you already have hepatitis B.. [/INST] Bevac Vaccine </s>