Yes, covid was in the US months before we bothered to check and count cases. There were rumors of a virus spreading months before it was officially acknowledged
Most likely, Covid19 was introduced into USA from World Military Games[0], or from Russia in October-November 2019.
If someone went to Novosibirsk to check situation after blast at BSL4 lab "Vector", then (IMHO!) he may contracted the virus and spreaded it in USA after return, which (IMHO!) explains why USA three letter agency covers that blast.
If someone went to Novosibirsk to check situation after blast at BSL4 lab "Vector", then (IMHO!) he may contracted the virus and spreaded it in USA after return, which (IMHO!) explains why USA three letter agency covers that blast.
[0]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7813667/