http://g7ee5otfyict57k24vjujuqzi6pd7iwvnsry2mt3svsgwzn6o6iynsad.onion/2023/covid.php
If you are ill, are displaying symptoms of illness, have tested
positive for COVID-19 in the past 14 days, or have been exposed to COVID-19
in the past 14 days please stay home. If you develop symptoms while in Switzerland, do not come to the
symposium venue or other symposium events. If possible, please test yourself for COVID-19 before leaving for
PETS.