New preprint with @skepteis, @AnthonyHauser5 and @JulRiou where we investigate counterfactual scenarios of an earlier and later implementation of non-pharmaceutical interventions (NPIs) against #SARSCoV2 in Switzerland @ISPMBern @unibern (1/5) medrxiv.org/content/10.110…
Switzerland currently has around 2,000 fatalities due to #SARSCoV2. Introducing the same sequence of NPIs only one week later would likely have resulted in around 8,683 (95% prediction interval, PI: 8,038-9,453) deaths. (2/5) 
A more rapid response with an introduction of NPIs one week earlier would have led to around 399 (95% PI: 347-458) fatalities due to #SARSCoV2 instead. (3/5)
Another important insight: One week of early exponential spread of #SARSCoV2 required roughly 3 weeks of 'lockdown' to reduce the number of infections to the same level again. (4/5)
Time is of the essence when it comes to outbreak response: An early implementation of NPIs during SARS-CoV-2 outbreaks can reduce the number of deaths and the necessary duration of strict control measures considerably. (5/5)
