Hepatitis B vaccine is a safe and effective vaccine for all newborns and children under 18 years of age. Hepatitis B vaccine is also recommended for adults with diabetes and people who are at risk of contracting the virus due to their job, lifestyle, environment or country of birth. Because everyone is at risk, all adults should consider getting the hepatitis B vaccine for lifelong protection against hepatitis B. Cancer vaccine” for providing protection against hepatitis B, the leading cause of cancer worldwide.