MSNBC MSNBC Reports November 26, 2021 16:21:00
Can up mutate and they can down mutate. this is clearly an up mutation causing more severe disease in south africa. the variants which were -- we were concerned about them, because we saw them in the united states in a couple of areas, but they never amounted to much. they down mutated and were not strong enough to take hold. this new variant in south africa poses some concern, but we should not start becoming hysterical about it right now. i think europe has the right idea to ban flights as wel...
Source: archive.org