Originally Posted by
Guisslapp
Wasn’t a problem for Taiwan, whenever this began.
Our best evidence is still January for when it got to the US, including the woman from California. The person north of Seattle is believed to have had an earlier respiratory infection prior to getting COVID.
We just don’t have lab samples or transmission chain evidence to predate January. The epidemiology of the spread based on the known transmission rate also doesn’t support the virus being transmitted here before January. That is the science based on the currently know facts.