| One speculation I've read is that Australian/Japan/New Zealand's very-bad 2019 flu season was SARS-CoV-2 before it could be diagnosed. My understanding is that most cases of "flu" are suspected, not laboratory-confirmed. Just found this October 4, 2019 NY Times story: Australia Just Had a Bad Flu Season. That May Be a Warning for the U.S., https://www.nytimes.com/2019/10/04/health/flu-australia-amer... From this NY times article: "This year’s Australian outbreak began in April [2019], two months earlier than usual, and persisted into October." COVID-19 cases in the US probably started November-ish. COVID-19 was found in US blood samples from December 2019. I had a day with an odd headache sometime around December 2019 or January 2020. I suspect I had a case of #EarlyCovid. Lots of other people in North America were super-sick in November/December 2019 and January 2020. Others have been using the hashtag for longer than I: https://twitter.com/search?q=%23EarlyCovid Edit: At least 4 downvotes in 16 minutes. This indicates many of you do not believe SARS-CoV-2 could have been spreading before it was isolated in Wuhan China in December 2019, or that I and many others might have had a case of non-diagnosed SARS-CoV-2 before tests became available in the US in March 2020. https://en.wikipedia.org/wiki/Timeline_of_the_COVID-19_pande... "A September 2020 review noted "The possibility that the COVID-19 infection had already spread to Europe at the end of last year is now indicated by abundant, even if partially circumstantial, evidence", including pneumonia case numbers and radiology in France and Italy in November and December." - https://en.wikipedia.org/wiki/Timeline_of_the_COVID-19_pande... What does it mean if the COVID-19 timeline is wrong? |
- labs would get more flu swabs which test negative - there would be enough globally to make someone suspicious
- why did we see only one strain of covid initially if it was already spreading early (and as I understand it the strain hierarchy always points to the Wuhan one on top)
- we haven't seen the cases drop completely without special measures in any country (there's a drop in summer, but only partial) - why was Australia pretty much covid free initially with all the assumed 2019 cases?