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Reinfection, severe outcome more common with BA.5 variant; virus spike protein toxic to heart cells

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Thu, 2022-07-28 22:38 — FNUOvviyaa

Reinfection, severe outcome more common with BA.5 variant; virus spike protein toxic to heart cells Compared with the earlier Omicron BA.2 subvariant, currently dominant Omicron BA.5 is linked with higher odds of causing a second SARS-COV-2 infection regardless of vaccination status, a study from Portugal suggests. Further, they found, in infected heart muscle cells only the SARS-CoV-2 spike interacted with so-called TLR4 proteins (Toll-like receptor-4) that recognize invaders and trigger inflammatory responses. YahooNews

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