'''Hepatitis B''' is a viral [[disease]] transmitted by exposure to infected [[blood]] or [[blood]] products (such as [[blood]] transfusions), saliva, or through unprotected sex with someone who is infected.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#h</ref> | '''Hepatitis B''' is a viral [[disease]] transmitted by exposure to infected [[blood]] or [[blood]] products (such as [[blood]] transfusions), saliva, or through unprotected sex with someone who is infected.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#h</ref> |