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[–]Bitch-Im-a-cow 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (1 child)

If you know this much about viruses and vaccines, you'll know that the only update to a SARS vaccine is the inclusion of a small portion of a new virus strain or an mRNA adjustment that attacks a new strain. Differences between updates are incredibly small, related to the new strains. Testing for that vaccine with the tiny new strain would naturally have simiar results as previous tests.

[–]SaltyTexan 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

If you know this much about viruses and vaccines, you'll know that the only update to a SARS vaccine is the inclusion of a small portion of a new virus strain or an mRNA adjustment that attacks a new strain

Yes which is why I said that ANY change even the most minute change can effect how the vaccine or virus will respond. That is why one corona vaccine may not protect against different strains of COVID. Just because the SARS-CoV-1 is genetically similar to the SARS-CoV-2, doesn't mean they are the same or they will react the same when presented in the same host, or when introduced to the same vaccine. They are more like cousins, alike but also vastly different. We've had how many different stains of COVID now and it's only been around for about 4-5 years. Depending on who you believe about when it really got out.