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About: Alex Sigal     Goto   Sponge   NotDistinct   Permalink

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Alex Sigal is a South Africa–based virologist at the Africa Health Research Institute (AHRI) in Durban, South Africa, Max Plank Institute for Infection Biology in Berlin, and University of KwaZulu-Natal in Durban. His work concentrates on evolution and persistence of the SARS-CoV-2 virus. His laboratory was the first to isolate the live B.1.351 (Beta) variant of SARS-CoV-2 first detected in South Africa. Sigal’s laboratory was also the first to report results on the ability of the Omicron variant to escape antibody neutralization in individuals who had two doses of the Pfizer BNT162b2 vaccine as well as from previous infections, with results also suggesting that vaccination combined with a booster or previous infection can offer protection from symptomatic infection with Omicron.