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https://twitter.com/abergthaler/status/1729740561882493339So frühe Dominanz von JN.1 hat weitreichende Konsequenzen.
Derweil haben wir national den Rekordwert an SARS-CoV-2 Konzentration im Abwasser erreicht. 2/n
Selber Trend in mehreren Europäischen Ländern soweit Daten vorhanden. Wäre jetzt halt klug i) frisch geimpft zu sein ii) Maske zu tragen iii) Rücksicht zu nehmen.
Set up within 2 weeks with @Lcochella, @yelagandula_ram and others in response to Alpha , @IMBA_Vienna/@oeaw, @IMPvienna, and the Austrian Agency for Health and Food Safety @agesnews provided a great example of how science can contribute to society and emergency response.
With 2688 successfully sequenced samples this week Austria still has a remarkably good overview over the pandemic and become an international role model in surveillance.
https://twitter.com/i_am_fabs/status/1634490143703810049
Based on reported case numbers at least, XBB.1.5 appears to have passed it’s peak. This trend is less obvious but also seen in wastewater, see page 10 in the link below:
XBB.1.5 continues to grow and makes up ~60% of cases now in nowcasting. Shown here are the relative fractions within the total reported (!) cases.
Current significant growth in incidence is almost exclusively due to XBB.1.5, that reached >50% of cases now.
The variant situation for Austria changed dramatically between the years. While we had a swarm of lineages growing in numbers until Christmas, it is now just one lineage showing growth: XBB.1.5.
With @LCochella and @yelagandula_ram we initiated the task of nationwide surveillance of SARS-CoV-2 in an academic setting in response to the Alpha variant. A great collaboration between #AGES @agesnews, @IMPvienna and @IMBA_Vienna/@oeaw. And a big responsibility!
BA.5 with R346T has reached ~25% now. New variants such as BQ.1(.1) and XBB show clear growth. BQ.1(.1) currently at ~8%, XBB<1%.
A. Any form of enforced mask mandate as seen in some countries previously of course is a stress test for societies and generally disfavoured by most, but also requested by many. Some arguments for society level reactions:
We have built a polyclonal B-cell immunity to counteract a SARS-CoV-2 infection, that we all cherish. But as we get closer to the edge of it, mutations in the spike protein gain more advantage to escape that defense.
In one study, Ben Murrell and colleagues show five-fold escape from serum neutralization by BA.2.75.2 in pseudovirus assay.
This rainbow-painted spike (blue to red) shows the N-terminal domain in shades of blue followed by RBD in shades of green for comparison.
The lineage was noticed already a month ago, you can follow the details and expansion in this pango-designation issue:
BA.2.75 mutations were discussed previously. Eight mutations on top of the 29 BA.2 mutations in spike and even more distinct from BA.5https://twitter.com/EllingUlrich/status/1543546810182017027