Pfizer Inc said on Tuesday its vaccine to prevent infections from a bacteria that mainly spreads through hospitals and doctors' offices and can even prove fatal, failed to meet the main goal of a late-stage study.
The Pfizer logo is pictured on their headquarters building in the Manhattan borough of New York City, New York, U.S., November 9, 2020. REUTERS/Carlo Allegri/File Photosaid on Tuesday its vaccine to prevent infections from a bacteria that mainly spreads through hospitals and doctors' offices and can even prove fatal, failed to meet the main goal of a late-stage study.
The infection is associated with diarrhea that may progress to a severe and debilitating illness and even result in death. Most C. diff cases occur when patients have been taking antibiotics, which wipe out friendly bacteria in the colon that normally keep C. diff under control.The Pfizer vaccine only showed an efficacy of 31% in preventing the infections after the third dose, and 28.6% following the second dose in the study.
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