[QUOTE=Cass40;1636264503]I'm sorry but I don't understand your logic at all.
Let's say the study is valid, the South African variant causes 1% of covid cases. So by the time it becomes prevalent, isn't their already going to be another vaccine?
I thought flu vaccines are a yearly thing and they always change them according to whatever variants they think is the most severe that year, and sometimes they end up getting it wrong cos they are just making the best guesses. And this is with the regular flu vaccine.[/QUOTE]
mRNA vaccines work differently than the traditional flu vaccine. They do not contain dead or inactive virus parts. Instead, they contain small molecules with specific instructions for a c-19 spike protein.
From my understanding, the only reason we were able to create the first mRNA vaccines is because China isolated and fully sequenced the virus, and shared that data.