https://www.dailyexcelsior.com/genetic-variant-in-immune-system-could-be-behind-asymptomatic-covid-infection-study/
NEW DELHI, July 20: Variation in genes encoding proteins involved in immune responses could be behind why some people remain asymptomatic following SARS-CoV-2 infection. Human leukocyte antigen (HLA) genes encode these proteins used by the immune system in id…
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