FWIW all Google Zurich leads and my whole management chain insisted that people having any kind of symptom (in general, and not just for the Coronavirus) should rest at home & see the doctor to recover and prevent infecting other Googlers.
They also insisted that even "healthy Googlers" feeling insecure coming to work can fully work from home in the coming weeks, and told managers that they shouldn't prevent their managees from doing so.
This company has just always been super comprehensive regarding health conditions. If you don't feel good and just want to go back home to rest or take a 2h nap in the sleeping room you can just do it without any justification. Whenever I discuss this with friends none of them has the same freedom and trust that Google gives us.
Wishing the best to everyone in this scary period.