South Africa Has Found About 4,000 Covid-19 Reinfections with B.1.351 501Y.V2

South Africa confirms 4,000 reinfections due to B.1.351

The president of the South African Ministerial Advisory Committee on Vaccines, Barry Schoub, reported this Wednesday that some 4,000 reinfections of coronavirus have already been registered in the country due to the mutation of one of its strains.

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Italian vaccinated with Pfizer/Biontech vaccine is infected with Brazilian coronavirus variant 501YV2

A health professional at a hospital in L’Aquila, Italy, was infected with the variant Brazilian P.1 of the new coronavirus, even after being immunized with the vacina pharmaceutical company Pfizer in partnership with BioNTech.… ...More...

Circulating SARS-CoV-2 variants B.1.1.7, 501Y.V2, and P.1 have gained ability to utilize rat and mouse Ace2 and altered in vitro sensitivity to neutralizing antibodies and ACE2-Ig

Here, we first investigated cross-species receptor usage of multiple SARS-CoV-2 variants that emerged during the pandemic.… ...More...

Moderna developing vaccine “booster shot” against 501YV2 variant

Moderna said its Covid-19 vaccine appeared to protect against emerging variants of the coronavirus in laboratory tests, but as a precaution it would test whether a booster shot improves immune responses and develop a new vaccine targeting the strain first identified in South Africa.… ...More...