Natural COVID-19 infections protect against SARS-COV-2, gamma and delta variants, says study

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Natural infection with COVID-19 offered protection from reinfection when the gamma and delta variants predominated, according to a new University of Michigan study that also provides levels of antibodies needed to protect against reinfections.

According to the study, which took place in a community setting in Nicaragua, having infection-induced antibodies provided 69% protection against infection and 79% protection against moderate or severe illnesses. The study showed that second infections were less severe than first…

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