Diphtheria, tetanus, and pertussis are
serious diseases caused by bacteria. Diphtheria and pertussis are
spread from person to person. Tetanus enters the body through cuts or
wounds.
Hepatitis B is a viral infection of
the liver. It is caused by the hepatitis B virus (HBV). Lifelong HBV infection
can lead to liver cancer or scarring of the liver (cirrhosis). More than 1
million people in the United States are living with
Anyone can get infected with hepatitis C virus (HCV), the virus that causes hepatitis C. Hepatitis C is a liver infection that can lead to serious liver problems and possibly death. Although most children and adolescents recover from the initial phase of HCV infection, 70% to 80% of acute infections
