New Merck pneumonia vaccine OKd in US weeks after Pfizers

U.S. regulators have approved a new pneumonia vaccine from Merck, more than a month after OK’ing an improved version of rival Pfizer’s shot. Both new shots offer better protection against bacteria that can cause pneumonia, meningitis and blood infections, as well as garden-variety ear and sinus infections. Merck said Friday that the Food and Drug Administration approved its shot, called […]
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