New sub-variant of Omicron:
1/ You’ve probably heard the #Omicron “stealth” sub-variant, BA.2, is spreading rapidly in places like Denmark. We’re tracking the signal and, while there’s a lot of uncertainty, a picture is emerging. A 🧵 on what we're learning. @RickABright @jessicamalaty @amymaxmen @Tuliodna
— Pandemic Prevention Institute (@PPI_Insights) January 26, 2022
It’s been detected in WA.
Good news, UK data analysis found that double vaccination reduced Long COVID by 40% (although data are pre-Omicron)
From the summary: “Long COVID symptoms of any severity were reported by 9.5% of double-vaccinated study participants, compared with 14.6% of socio-demographically similar participants who were unvaccinated when infected; the corresponding estimates for long COVID symptoms severe enough to result in limitation to day-to-day activities were 5.5% and 8.7% respectively.”
Omicron experience of a woman with mild comorbidities:
Before I take a break, I have decided to update this personal tweet. An update on day 18 of Omicron and why I’d like to share.
— Prof. Debby Bogaert 💙 (@DebbyBogaert) January 22, 2022
As she says, we are not our comorbidities.
Omicron may last longer on surfaces than previous strains:
Interesting preprint demonstrating Omicron having more environmental stability compared to other variants & maintaining infectivity for longer.
Air matters, but maybe more fomite transmission with Omicron than previously thought?
Handwashing still (read: always) important. pic.twitter.com/E7qfuDVO2B
— Isaac Bogoch (@BogochIsaac) January 25, 2022
“Patients with [long COVID] had highly activated innate immune cells, lacked naive T and B cells and showed elevated expression of type I IFN (IFN-β) and type III IFN (IFN-λ1) that remained persistently high at 8 months after infection.”
(Study data began April 2020 so pre-Delta and pre-Omicron)