Mer­ck stokes pneu­mo­coc­cal ri­val­ry with Pfiz­er, re­veal­ing up­dat­ed 21-va­lent vac­cine da­ta

Mer­ck’s ex­per­i­men­tal 21-va­lent pneu­mo­coc­cal vac­cine best­ed Pfiz­er’s Pre­vnar 20 for 10 of 11 serotypes unique to the new shot, ac­cord­ing to a Tues­day da­ta read­out …

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