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Bleacher Creature

(11,504 posts)
7. That, plus the fact that the mRNA vaccines have been around since the '90s.
Fri Jul 30, 2021, 12:29 AM
Jul 2021

If not a little earlier because they were intended to be used against the AIDS virus. The problem is that AIDS mutates too fast.

COVID-19 presented the best opportunity to actually use those vaccines for the first time given how contagious it is and how widespread the pandemic became, but they're not new.

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