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. 2022 Jan 26;10:818989. doi: 10.3389/fpubh.2022.818989

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Count of new cases of COVID-19 patients across the USA for the four waves (new cases were reported by states divided by the population of each state and per 100.000 inhabitants). (A) New cases between the minimum of infection counts and the national peak time between two waves. (B) Rolling 7-day average before the national peak time of each wave. (C) Incidence of new cases for the national peak time of each wave.