Get the facts about vaccines

Are fetal tissues used in the creation of some vaccines?

Varicella (chickenpox), rubella (the “R” in the MMR vaccine), hepatitis A, one version of the shingles vaccine, and one preparation of rabies vaccine are all made by growing the viruses in fetal embryo fibroblast cells. Fibroblast cells are the cells needed to hold...

Why was RotaShield® was taken off U.S. market in 1999?

RotaShield® vaccine was the first vaccine to prevent rotavirus gastroenteritis approved for use in the United States in August 1998. Its removal from the market is a good case study for how the Centers for Disease Control and Prevention (CDC), Advisory Committee on...

What is Guillain-Barré and can vaccines cause it?

Guillain-Barré syndrome (GBS) is a rare disorder in which a person’s own immune system damages their nerve cells, causing muscle weakness and sometimes paralysis. It often follows infection with a virus or bacteria. Most people recover fully from GBS, but some people...

Can my child actually get the disease from a vaccine?

With an inactivated (killed) vaccine, it isn’t possible. Dead viruses or bacteria can’t cause disease. With live (weakened) vaccines, some children get what appears to be a mild case of disease (for example, what looks like a measles or chickenpox rash, but with only...