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USA Winter 2021 CoVID-19 Resurgence Post-Christmas Update

Eng, G.

2022-02-06 epidemiology
10.1101/2022.02.04.22270491 medRxiv
Show abstract

We have successfully modeled every USA CoVID-19 wave using: O_FD O_INLINEFIG[Formula 1]C_INLINEFIGM_FD(1)C_FD where N (t) is the total number of new CoVID-19 cases above a prior baseline, and tR sets the doubling time tdbl = tR (ln 2). The new parameters {S ;{delta} o} measure mitigation efforts among the uninfected population, with {S > 0} being associated with Social Distancing and vaccinations ; while {{delta}o > 0 }is associated with mask-wearing, which gives a faster [Formula] post-peak drop-off. The predicted pandemic wave end is when N (t) no longer increases. Using data from 11/15/21-12/30/21, our prior medrxiv.org preprint* showed this initial Omicron CoVID-19 wave had values that matched the initial stage of the prior USA Winter 2020 resurgence {tR {approx}8 05 days ; S {approx} 0 011 / day}, when practically no one was vaccinated. In addition, this initial Winter 2021 wave showed virtually no mask-wearing {{delta}o{approx} x 0 001 10-3 / day}, making it capable of infecting virtually everyone. These parameter values indicated that the Omicron variant was likely evading the vaccines in people who thought they were protected. As a result, stopping the Omicron CoVID-19 spread must once again rely on enhanced Social Distancing and mask-wearing, just like the initial pandemic wave in March 2020. Analyzing the USA follow-on data from 12/25/21-1/31/22 shows that people did exactly that after the Christmas Holiday season, resulting in the following model parameters and values: O_FD O_INLINEFIG[Formula 2]C_INLINEFIGM_FD(2)C_FD for this wave by itself, with all prior waves subtracted out as a baseline. Combining all the USA CoVID-19 waves gives these updated totals: O_FD O_INLINEFIG[Formula 3]C_INLINEFIGM_FD(3)C_FD assuming no future CoVID-19 Resurgence (with 4 Figures). *(10.1101_2021.10.15.21265078)

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