Aerosols as major transmission path and what we can do

On 7 December 2021 I had the opportunity to present my thoughts about aerosol transmission to a group of members of the Swiss parliament. Here is the video (in German). Note: I will add later also an English and French version – but this may be only after the...

A guide towards healthy classrooms

How can we reduce the potential spread of the SARS-CoV-2 virus through aerosol transmission in  classrooms? Researchers from Europe’s COST-Action INDAIRPOLLNET (led by Xavier Querol and Maricruz Minguillón from CSIC and Michael Riediker from SCOEH) developed a guide...

This winter, be quiet when going to ski

If you decide to go ski this winter, be quiet. No, it’s not about not telling your government that you decided to go skiing. It’s about not creating sounds with your mouth. Combined with masks, it is the best way to prevent a series of super-spreading events. Do this...

Corona strategies inspired by a battle-field game

I was recently contacted by a soldier who was trying to understand why the virus continues to spread rapidly even though my research suggests that those having the possibility to transmit the virus to others are rare. I answered with a battle-field analogy. These are...