Which of the following is a key characteristic of hepatitis B?

Hepatitis B is a viral infection that affects the liver and is known for several key characteristics. One of the most important aspects of hepatitis B is that it can be effectively prevented through vaccination. The hepatitis B vaccine has been shown to be highly effective in providing immunity against the virus. This vaccination is particularly recommended for newborns and high-risk populations, contributing to the reduction of infection rates globally.

Other characteristics such as being transmitted only through contaminated water are not accurate, as hepatitis B is primarily transmitted through blood and bodily fluids. The nature of hepatitis B as a viral rather than a bacterial infection is crucial in understanding its treatment and prevention strategies. Additionally, while some cases of hepatitis B may resolve on their own, many can lead to chronic infection and complications if not properly managed, which is why the statement regarding it typically resolving without treatment does not capture the full clinical picture.