Word: rotashield
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...infects almost every child in the world by age 5 and kills 600,000 of them a year in poor countries. (Children who contract the virus in rich countries, by contrast, usually recover quickly because they are treated aggressively.) The first vaccine approved for prevention of rotavirus, Wyeth's Rotashield, was taken off the market in 1999 after several children who received it developed a rare but serious complication in which the bowel folds in on itself. Preliminary studies suggest this problem has been overcome by Merck's RotaTeq, which was approved by regulators in Europe and the U.S. earlier...
Shortly after that the CDC called a halt to all inoculations with RotaShield, a new vaccine made available last year. It was designed to protect infants from potentially fatal rotavirus infections, which cause severe diarrhea and dehydration. The agency's action followed word that 23 infants suffered a collapsed bowel after getting the vaccine...