Odpowiedzi na post #1 982

Yes, variants do matter. For example, in the case of a city in Brazil, where about 76% of people got infected, herd immunity was not achieved...

Wow, you really are proving you're full of shit about being a biologist now. Vaccines can be longer or shorter, depending on the vaccine. For...

Thank you for posting those sources and explaining it in an understandable way. It seems possible but what about how mRNA prevent severe COVID...