Final answer:
The Hepatitis B vaccine is recommended for children and adults at risk to protect against the virus.
Step-by-step explanation:
The Hepatitis B vaccine can protect people who may come into contact with the virus. The vaccine is recommended for children as part of the standard vaccination schedule, with one dose given at birth and the second dose by 18 months of age. It is also recommended for adults at greater risk, such as those with certain diseases, intravenous drug users, and those who have sex with multiple partners.