A Pfizer executive told European lawmakers on Oct. 10 that neither she nor other Pfizer officials knew whether its COVID-19 vaccine would stop transmission before entering the market last year, in keeping with previous indications that clinical trials were limited to the impact of vaccines on symptomatic COVID-19.
Member of the European Parliament, Rob Roos, asked during a session: “Was the Pfizer COVID vaccine tested on stopping the transmission of the virus before it entered the market?”
