Nothingontop (appropriate moniker) linked here:
The very first paragraph describes the objective of the trial:
– “Observational evidence suggests that mask wearing mitigates transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is uncertain if this observed association arises through protection of uninfected wearers (protective effect), via reduced transmission from infected mask wearers (source control), or both.”
So the paper accepts widespread pre-existing findings that mask use reduces cross-infection, and disproves Nothingontop’s earlier lie that using a mask increases infection risk for the wearer.
Nothingontop, do you encourage drunk driving, littering, and spitting in people’s faces too?