On teda i pokračuje...
"This would serve to attenuate the efficacy estimates, and may be one reason why the efficacy vs. severe disease is not higher than 85-92%. Also, this might make their single-dose efficacy appear much higher than other places since it also includes those previously infected who were eventually vaccinated. More caveats to keep in mind ..."
Fakt tragédie, tyhle vakcíny.. .