Correction
The Pfizer Meningitis B vaccine, Trumenba, requires a two- or three-dose series and the Glaxo Smith Kline Meningitis B vaccine, Bexsero, requires a two-dose series for an individual to be fully protected against the disease. Incorrect information regarding dosing was published in a story that ran July 29. The 蘑菇视频 apologizes for the error.