• FDA Approves Expanded Use of Adacel (Tdap) Vaccine for Repeat Vaccination firstwordpharma
    January 15, 2019
    "While strong vaccination programs are in place for young adolescents, a single Tdap immunization does not offer lifetime protection against pertussis due to waning immunity," said David P. Greenberg, M.D., Regional Medical Head North America at Sanofi Pa
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