> you're probably thinking, wow, you and your daughter had COVID-19 in January of 2020. And you'd most likely be wrong. I agree with your general point regardi

> you're probably thinking, wow, you and your daughter had COVID-19 in January of 2020. And you'd most likely be wrong. I agree with your general point regarding the statistical improbability. However it's important to be aware that multiple recent studies have documented serological evidence suggesting that SARS-CoV-2 was circulating in the United States earlier than previously recognized - as early as 13–16 December 2019 [1][2]. For reference that is over a month before the first officially confirmed case in Washington state (15-19 January 2020) [3]. Furthermore, reports have identified a hospitalized patient with confirmed SARS-CoV-2 infection in Wuhan with symptom onset as early as 1 December 2019 [1]. So when people say they had COVID in early 2020, consider that it may not be as unlikely as we originally thought. Hindsight and future research may reveal a need to further adjust the timeline. > These findings indicate that SARS-CoV-2–reactive antibodies were detected in 106 specimens, a small percentage of blood donations from California, Oregon, and Washington, as early as 13–16 December 2019. The presence of these serum antibodies indicate that isolated SARS-CoV-2 infections may have occurred in the western portion of the United States earlier than previously recognized [1] [1] Serologic Testing of US Blood Donations to Identify Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)–Reactive Antibodies: December 2019–January 2020 https://academic.oup.com/cid/article/72/12/e1004/6012472 https://academic.oup.com/cid/article/72/12/e1004/6012472 [2] Identification of the first COVID-19 infections in the US using a retrospective analysis https://assets.researchsquare.com/files/rs-707353/v1/baa84b87-430c-43af-ac8d-7bff5152207a.pdf https://assets.researchsquare.com/files/rs-707353/v1/baa84b8... [3] https://www.cdc.gov/media/releases/2020/p0121-novel-coronavirus-travel-case.html https://www.cdc.gov/media/releases/2020/p0121-novel-coronavi...