parts of the world where hepatitis B is common Travelers' Health: Hepatitis B parts of the world where hepatitis B is common Travelers' Health: Hepatitis B countries where hepatitis B is common Travelers' Health: Hepatitis B parts of the world where hepatitis B is common Centers for Disease Control and Prevention Travelers' Health: Hepatitis B Travelers' Health: Hepatitis B Travelers' Health: Hepatitis B Travelers' Health: Hepatitis B countries where hepatitis B is common Hepatitis B parts of the world where hepatitis B is common Travelers' Health: Hepatitis B countries where hepatitis B is common countries where hepatitis B is common regions with moderate or high rates of Hepatitis B Travelers' Health: Hepatitis B