Health

Infectologist for Covid-19 vaccine: “Before six months or a year it is very difficult for it to be available in a massive way in Chile”

[ad_1] In recent days, two American laboratories (Pfizer and Moderna) and the Russian institute Gamaleya announced that the vaccines against Covid-19 being developed have shown efficiency greater than 90% and that by virtue of the positive results of their studies, these could be available in several countries in two or …

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