Microsoft co-founder Bill Gates says more doses of COVID-19 may be needed for people to recover from the coronavirus.
Gates said this in an interview with CBS News.
He stressed that today it is incorrect to talk about the positive effects of any of the vaccines in a single dose.
"We hope that the treatment will be effective with only a double dose. Older people will sometimes need more than twice the dose, ”he added.
Bill Gates has allocated $ 300 million for the development of the COVID-19 vaccine.