In a March 13 interview with CBS, Albert Bourla, Pfizer’s CEO, said his company intended to apply to the Food and Drug Administration for authorization of a fourth mRNA vaccine dose and implied that this was something all adults needed. Two days later, it did just that — but only for adults over 65.
That same day, Stephen Hoge, Moderna’s president, took a different perspective: that a fourth dose of his company’s mRNA vaccine wasn’t required for all adults but could benefit older and immunocompromised Americans. Two days later, Moderna announced it was requesting FDA authorization of a fourth vaccine dose for everyone aged 18 or over.