From 8th February all passengers from 12 years of age entering Switzerland are required to have a negative Covid-19 PCR test result not older than 72 hours before arrival and to fill out the electronic form https://swissplf.admin.ch/formular.

From 24th of January all passengers over 6 years of age entering Germany are required to have a negative Covid-19 PCR test result not older than 48 hours before arrival and to fill out the electronic form https://einreiseanmeldung.de/#/