1/4 We have recruted a random sample of the Geneva population and found that 67% have anti SARS-CoV-2 antibodies, half developed following vaccination and half via natural infection @iguessous @Hopitaux_unige

https://twitter.com/UNIGEnews/status/1414970429819822086

2/4 There are large age variations, with 90% of >65y folks having antibodies; Minors have much lower rates and almost entirely due to natural infection, ranging from 40% in 12-18y olds, 35% in 6-12y and 25% in <6y

1/2 Findings from our study on seroprevalence of anti-SARS-CoV-2 antibodies among over 10’000 essential workers from 16 sectors and 32 occupations are finally published. @iguessous @andrewazman @UNIGEnews @Hopitaux_unige @NatureComms . nature.com/articles/s4146…

https://twitter.com/iguessous/status/1402484738330443777

2/4 We show large variations across sectors and occupations, and large heterogeneity within sectors, as expected from this virus spreading in clusters via superspreading events. Generally essential workers didn’t have a much higher exposure risk than the general pop

Preliminary data of our Geneva serosurvey capturing most of #COVID19 2nd wave show that only 22% of the population has #antibodies against #SARS-CoV-2, with large age disparities (<15% children 0-6y; 10% seniors >75y; ~30% 18-25y). Children >6y have similar rates than adults

https://twitter.com/19h30rts/status/1339652820191088640

We decided to release this data to inform the population in view of the Christmas family gatherings when traditionally different generations mix. However, a very large majority of the seniors, those most at risk of developing severe forms, are still completely naive to the virus

1/ I may be repeating myself, but I want to fight this sense of security that I see outside of the epicenters, as if nothing was going to happen "here". The media in Europe are reassuring, politicians are reassuring, while there's little to be reassured of. #COVID19 #coronavirus 2/ This is the English translation of a post of another ICU physician in Bergamo, Dr. Daniele Macchini. Read until the end "After much thought about whether and what to write about what is happening to us, I felt that silence was not responsible.