Claim: COVID-19's "contagion probability" between two people is 70% if the carrier is not masked, 5% if the carrier is masked, and 1.5% if both parties are.
Fact-check: Mask meme's percentages are 'bonkers'
Verdict: barely-true
Organisation: PolitiFact
Author: Victoria Knight
Date published: 2020-07-01T00:00:00