covid-19
Publisher: The Conversation
Author: Sarah L Caddy
6 Apr 2020
Does the amount of virus you are exposed to determine how sick you’ll get?
Is the initial dose of SARS-CoV-2 (the virus that causes COVID-19) related to the disease severity? At the moment, we just don't know. The only way to answer this question definitively is with "experimental challenge studies", which involves intentionally infecting healthy volunteers in order to study diseases and their treatments.