Reacción a "Reactions to Pfizer executive's claim that they did not test whether covid-19 vaccines stopped transmission"

I don't understand the spin on this or the surprise, if anyone is surprised. The protocols for the clinical trials of the vaccines, as well as the results, were made public in the FDA and EMA reports when evaluating the vaccines. In virtually all cases, with the exception of AstraZeneca, no vaccine company studied efficacy in protecting against infection. The studies focused on efficacy in protecting against severe illness, hospitalisation and death. This is, on the other hand, understandable and, in fact, what the WHO demanded is that there should be a vaccine that prevents severe disease in at least 50% of cases. These vaccines were well above this threshold in efficacy in clinical trials.

From the outset, from the results in animal models and from the route of administration itself, scientists warned that these vaccines were very good at preventing severe disease, but not infection. This does not detract from the fact that these vaccines are being instrumental in controlling the pandemic and preventing hospitalisations and deaths. It is because we have them that we are in a better position to deal with the virus.