Discover and read the best of Twitter Threads about #BrazilVariant

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#SARSCOV2 & #VariantsOfConcern
#B117 #B1351 #P1
SARS-CoV-2▪︎Genetically related to 2003 SARS virus▪︎Named Feb 11 2020 #COVID19▪︎Feb 24 2021 Global Cases 112,409,584, Deaths 2,492,420▪︎Feb 24 2021 US Cases 28,313,003, Deaths 504,295

#UKvariant #B117▪︎Discovered Sept 2020▪︎80+Countries▪︎1st US Dec 2020▪︎Feb 24 2021 US Cases 1,881 across 45 States▪︎Estimated 30-50% more transmissible (spreads easier&faster)▪︎UK suggests the strain may cause more severe cases & 30% increased risk of death. /2
#SouthAfricanVariant #B1351▪︎Appx same time as #B117▪︎Feb 24 2021 US Cases 46 across 14 States▪︎Dominant strain in Zambia Dec2020▪︎Estimated 50% more transmissible▪︎No evidence yet of increased severity▪︎Mutated Spike Protein allowing latch to human cells easier/3
Read 9 tweets
There's been a lot of news today about 'new variants in Brazil' & 'S:E484' and 'Ohio variants'. A short thread discussing what we know about each.


#SARSCoV2 #Ohio #BrazilVariant #Brazil #COVID19
There are two variants circulating in Brazil: 20J/501Y.V3, recently detected in Japan & prevalent in Manaus. And temporarily-labelled '20B/S.484K', a larger clade circulating more widely in Brazil.

They both carry the spike mutation 484K, though this arise separately.

S:E484K is also found in 501Y.V2 (primarily circulating in South Africa).

Why are we particularly concerned about S:E484K? You can read more at, as discussed in a tweet from earlier this week:


Read 14 tweets

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