RotaShield was the first vaccine licensed in the United States to prevent rotavirus gastroenteritis.
Wyeth developed RotaShield as a live, oral vaccine containing reassortant rotaviruses. The U.S. Food and Drug Administration licensed it in 1998 for infants, making it an important early advance against a major cause of severe childhood diarrhea and dehydration.
RotaShield was withdrawn from the U.S. market in 1999 after surveillance linked it to intussusception, a rare form of intestinal blockage. The withdrawal is why RotaShield is often confused with later rotavirus vaccines, which use different formulations and safety data.
Rotarix and RotaTeq became the best-known later alternatives, but neither was the first U.S.-licensed rotavirus vaccine. The World Health Organization later recommended routine rotavirus vaccination in countries where the disease causes substantial childhood illness and death.