Quote:
Originally Posted by spiderplant
No it isn't. If that were true, viruses that have been around a long time would be mutating at an amazing rate.
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I think what he's saying with regard to time is getting as many people vaccinated as possible before it mutates into something the vaccine is less effective against, the obvious aim being to stop that new strain getting a foothold amid an already virus riddled population and if that isn't what he meant, it probably should have been!