> Let's not write this off as due to a less-effective vaccine until we find out whether or not this is in line with the expected effectiveness of that vaccine.

> Let's not write this off as due to a less-effective vaccine until we find out whether or not this is in line with the expected effectiveness of that vaccine. Sinovac does not have usable effectiveness data, due to the manner and place of its development. It is well-known internationally to be less effective than many other options. > With each variant, nature gets another shot at obsoleting all existing vaccinations. Please don't hyperbolize. "Obsoleting all existing vaccinations" means a new disease, not a variant. And every mutation is a tradeoff: if COVID-19 "starts over", it may well be much less virulent: less transmissible, or less deadly, or both.