Model predicts natural COVID-19 immunity wanes fast, re-infection likelyReinfection from SARS-CoV-2 under endemic conditions will most likely occur at a median of 16 months, according to a modeling study published late last week in The Lancet Microbe.The researchers looked at the human-infecting coronaviruses SARS-CoV-2, SARS-CoV, MERS-CoV, HCoV-229E, HCoV-OC43, and HCoV-NL63 from Feb 12 to Jun 15, 2020, analyzing about 58 alphacoronavirus, 105 betacoronavirus, 11 deltacoronavirus, and 3 gammacoronavirus genome sequences.
They compared peak-infection and reinfection data in endemic scenarios. The method also used antibody optical density data spanning 128 days to 28 years post-infection from 1984 to 2020.According to the model they derived