Wyeth Will Not Reintroduce RotaShield; NIAID Study Says Risk Is Low

Wyeth-Ayerst has no plans to reintroduce the rotavirus vaccine RotaShield, the company said Oct. 12 after the National Institute of Allergy & Infectious Diseases announced results of a study suggesting that the increased risk of intussusception associated with the vaccine may be offset by a decreased risk over time.