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Während den letzten 7 Wochen wurden in der Schweiz rund 230â000 Fälle bestätigt. Bei einer vermuteten Dunkelziffer von ungefähr 5 ergibt dies 1,15 Millionen Infektionen bzw. 13% der BevĂślkerung. 2/4
The intrinsic transmissibility of BA.2 and BA.5 is arguably similar to Delta (doi.org/10.1038/s41586âŚ) with a basic reproduction number R_0 of around 6 and 4 during winter and summer in Switzerland, respectively. 2/4
https://twitter.com/adamjkucharski/status/1536613148010201088
A standard SIR model can be used to explore how #SARSCoV2 reaches an endemic equilibrium (constant incidence and prevalence of infection) in a country like Switzerland. 2/10
âJapan has sought to understand the spread and risks of the disease and apply that to minimizing deaths and hospitalizations while maintaining social and economic activities.â 2/7
The observed rapid replacement of Delta by Omicron in the province of Gauteng in South Africa is suggestive of a transmission advantage. 2/15 https://twitter.com/tuliodna/status/1463911571176968194
Seasonal effects on the transmission of respiratory infections are well-known. For example, we previously estimated that seasonal effects increased influenza transmission (i.e., the R value) in Switzerland from 2003 to 2015 by 37% (95% CrI: 14-54%). 2/n doi.org/10.1016/j.epidâŚ
When analyzing viral load in 950 individuals, we found that Alpha infections exhibit a higher viral load and longer viral shedding compared to non-VOC. 2/8
https://twitter.com/nzz/status/1381544374119583748Wie erwähnt prognostizierte Report 9 des @MRC_Outbreak am @imperialcollege 410â000 bis 550â000 Todesfälle fĂźr Grossbritannien. Dies jedoch im Falle einer komplett unkontrollierten Ausbreitung von #SARSCoV2. 2/n imperial.ac.uk/mrc-global-infâŚ
Die Resultate liessen sich zu diesem Zeitpunkt (18. Februar 2020) folgendermassen grob zusammenfassen. 2/4
https://twitter.com/bag_ofsp_ufsp/status/1361601717230575617Die neue Variante (501Y bzw. B.1.1.7) verdrängt die bisherigen Varianten in der Schweiz mit einer mehr oder weniger konstanten Rate. Genaueres dazu findet sich in unserer Analyse. 2/6 ispmbern.github.io/covid-19/variaâŚ
The proportion of 501Y and B.1.1.7 increases at a strikingly similar pace in different regions of Switzerland. Geneva appears to be around two weeks ahead of the rest of Switzerland. 2/4
We estimate that the proportion of 501Y has reached 67% (95% CI: 57%-75%) in Geneva and 35% (95% CI: 25%-47%) in Zurich. 2/5
We estimate a 33% (95% CI: 15%-56%) and 47% (95% CI: 21%-78%) increased transmissibility of N501Y variants, assuming a generation time of 5 and 7 days, respectively. 2/4
2020 started with a mild influenza season and Switzerland was on its way to a year with negative excess mortality. Then came the pandemic and a relatively early âlockdown' limited the number of #COVID19-related death to around 2,000 during spring. 2/5