Merck & Co. announced that it is voluntarily recalling one batch of its vaccine against the hepatitis B virus (HBV) because of fears that some of the vials might have cracked, reports. The U.S. Food and Drug Administration (FDA) posted a notice of the recall on its website, specifying the lot of injections manufactured at a research facility in West Point, Pennsylvania. The potentially damaged lot consisted of 27,020 vials of the adult formulation of Recombivas HB, a popular hep B vaccine, and it was distributed nationwide this year between March 12 and May 2. Officials said they decided to recall the product to ensure the integrity and sterility of the vaccine. Merck asserted it has adequate inventory to replace the recalled lot and to supply the market.

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