The Six Strains of SARS-CoV-2
upstart writes in with an IRC submission:
The six strains of SARS-CoV-2:
"The SARS-CoV-2 coronavirus is presumably already optimized to affect human beings, and this explains its low evolutionary change," explains Federico Giorgi, a researcher at Unibo and coordinator of the study. "This means that the treatments we are developing, including a vaccine, might be effective against all the virus strains."
Currently, there are six strains of coronavirus. The original one is the L strain, that appeared in Wuhan in December 2019. Its first mutation-the S strain-appeared at the beginning of 2020, while, since mid-January 2020, we have had strains V and G. To date strain G is the most widespread: it mutated into strains GR and GH at the end of February 2020.
Globally, strains G, GH and GR are constantly increasing. Strain S can be found in some restricted areas in the U.S. and Spain. The L and V strains are gradually disappearing.
Journal Reference:
Mercatelli, Daniele, Giorgi, Federico M.. Geographic and Genomic Distribution of SARS-CoV-2 Mutations, Frontiers in Microbiology (DOI: 10.3389/fmicb.2020.01800)
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