BREAKING🔔 A new study from G2P-Japan🇯🇵 is out! The preprint will be out so soon, but first we show our results on BA.2.86 - transmissibility, infectivity and immune resistance. This would be the 4th non-peer-reviewed🗒, but includes some new stuff. Please retweet/repost🔥 1/
Cf. Non-peer-reviewed works on BA.2.86:
The 1st🗒 from @yunlong_cao :
The 2nd🗒 from @BenjMurrell :
The 3rd🗒 from @BarouchLab :
Here I summarized the mutations detected in BA.2.86. 2/
1⃣Transmissibility/fitness (Re):
Analysis by Jumpei @jampei2 using the data from 🇩🇰 showed that BA.2.86's Re is greater than XBB.1.5 and comparable to or even greater than EG.5.1. 3/
2⃣Infectivity (pseudovirus):
BA.2.86 is ~20-fold LESS infectious than EG.5.1. 4/
3⃣Immune resistance:
All vaccine sera tested (monox3, monox4, BA.1 bivalent, and BA.5 bivalent) showed NO neutralizing activity against BA.2.86 (and EG.5.1). 5/
Three monoclonal antibodies (Bebtelovimab, Sotrovimab, Tixagevimab) that were antiviral against the parental BA.2 (see the G2P-Japan 9th paper) did NOT work against BA.2.86 AT ALL. 6/
Finally, the anti-BA.2.86 activity of XBB breakthrough infection sera was PRETTY POOR, and BA.2.86 was significantly (1.6-fold) more resistant to these sera than EG.5.1. 7/
Altogether, it is suggested that BA.2.86 is one of the most highly immune evasive variants ever and should have the potential to be considered as a variant of interest. 8/
Btw, 2 inturnship students from 🇮🇩 and 🇬🇧, Olivia and Yoonjin, did a great job in this urgent project. A great summer labwork🌊!! 9/
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BREAKING🔔 A new study from G2P-Japan🇯🇵, led by Yu in my lab, is out at bioRxiv @biorxivpreprint. We elucidated the virological characteristics of SARS-CoV-2 #XEC. Please repost🔥 1/ biorxiv.org/content/10.110…
Compared with KP.3, #XEC harbors two spike substitutions, S:T22N and S:F59S. Recombination analysis by Shusuke @KawakuboShusuke showed that XEC is a recombinant lineage of KS.1.1 (JN.13.1.1.1) and KP.3.3 (JN.1.11.1.3.3) with a breakpoint at genomic position 21,738–22,599. 2/
Transmissibility/fitness (Re):
Molecular phylogenetic-epidemic dynamics modeling led by Jumpei @jampei2 and Kaho showed that the Re of #XEC is greater than that of KP.3.1.1, the most predominant variant in the world. 3/
BREAKING🔔 Here I want to quickly report our new results from G2P-Japan🇯🇵 before the preprint publication. We have elucidated the virological characteristics of SARS-CoV-2 KP.3.1.1 - a progeny of JN.1. Please RT🔥 1/
Cf.1 A new one, KP.2 (JN.1.11.1.2), has been already elucidated. 2/
BREAKING🔔 Here I want to quickly report our new results from G2P-Japan🇯🇵 before the preprint publication. We have elucidated the virological characteristics of SARS-CoV-2 KP.3, LB.1 and KP.2.3 - progeny of JN.1. Please RT🔥 1/
Cf. A new one, KP.2 (JN.1.11.1.2), has been already elucidated. 2/