R.S.V. Vaccines May Slightly Increase Risk of Rare Neurological Condition
Vaccines for respiratory syncytial virus may have caused a few cases of Guillain-Barré syndrome, a rare neurological condition, federal health officials said on Thursday. The numbers were small, on the order of two cases per 100,000 vaccinated people or fewer, and much more data is needed to pin down the risk, the officials said. In…