What is true regarding the vaccine for Hepatitis B?

The vaccine for Hepatitis B is highly effective in preventing the infection, which is why the correct choice is that it can prevent the infection. Hepatitis B is a viral infection that affects the liver and can lead to chronic disease and other serious health issues, including liver cancer. The vaccine works by stimulating the body's immune system to produce antibodies against the virus, providing immunity and reducing the likelihood of infection significantly.

It is important to note that the vaccination is recommended for all infants and unvaccinated children, as well as certain high-risk populations, not just those considered high-risk. The vaccination should ideally be administered before exposure to the virus for maximum effectiveness; giving it after exposure does not guarantee that it will be effective in preventing infection. Thus, the statement that the vaccine can prevent the infection accurately reflects its purpose and efficacy.