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Vaccines may not work as well against the coronavirus variant detected in South Africa, so Moderna and Pfizer are upgrading their shots awoodward@insider.com (Aylin Woodward) © Felix Dlangamandla/Beeld/Gallo Images via Getty Images A volunteer receives an injection for a potential COVID-19 vaccine at the Baragwanath Hospital in Soweto, South Africa on June 28, 2020. Felix Dlangamandla/Beeld/Gallo Images via Getty Images COVID-19 vaccines may be less effective against a more infectious version of the coronavirus first found in South Africa. New research shows the mutated str...

Monoclonal antibody treatments could cut COVID-19 hospitalizations significantly - but doctors aren't using their full supply insider@insider.com (Aria Bendix) © Kirsty O'Connor/PA Images/Getty Images Stephen Craib, 42, makes his 15th plasma donation to the NHS Blood and Transplant Convalescent Plasma Program in London. Kirsty O'Connor/PA Images/Getty Images The FDA has authorized two monoclonal antibody treatments for COVID-19. Scientists think the drugs could help reduce hospitalizations. But Moncef Slaoui, the chief advisor of Operation Warp Speed, told CNBC that states ...