https://www.wsj.com/articles/covid-19-likely-in-u-s-in-mid-december-2019-cdc-scientists-report-11606782449
https://www.cnn.com/world/live-news/coronavirus-pandemic-12-01-20-intl/h_5e4e8b4b5f8f0b44c5286c5f05b483bb
https://www.usatoday.com/story/news/health/2020/12/01/covid-cdc-study-says-virus-us-weeks-before-first-case-reported/6475864002/
• 这种说法多半是为了把水搅浑。 -6thsense- ♀ (0 bytes) () 02/13/2023 postreply 20:02:08
• 一看likely就不可信。 -AprilMei- ♀ (0 bytes) () 02/14/2023 postreply 05:12:19