The good folks @Gisaid have nearly 140,000 #SARSCoV2 viruses genetically sequenced. If you go to their epi section: https://www.gisaid.org/epiflu-applications/hcov-19-genomic-epidemiology/
..there are some amazing findings.
1.) Tracing backwards they think 3 diff strains were in Wuhan by Dec4, abt 1% diff from each other.
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GISAID/2
2.) If you pass your cursor over a dot you get read-out on strain: source, country, genetics.
3.) As you move from Left 2 Right you track both time & an ever-widening genetic tree.
4.) Most USA viruses are the blue GR clade, which 1st emerged abt 2nd week of Feb.
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GISAID/3
5.) If you focus on the blue, and go to the furthest right/bottom of the blue section..click on that dot. It's USA/WI-GMF-20447/2020 -- a Wisconsin Sept. 15th strain. When you pass your cursor over it w/out clicking you will see that it's 20% divergent from its
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GISAID/4
(cont) parent strain and has a lot of mutations, 6 of which change an amino acid. That Wisconsin virus? I want to know where it's headed.
You can follow @Laurie_Garrett.
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