> Wearing cloth masks resulted in significantly higher rates of infection, the authors found. They also noted that in their test, the cloth masks were only 3 percent effective at blocking particles.
Hoo boy that's misleading by itself. The control group was "use what you normally use", and had the following numbers:
> In the control arm, 170/458 (37%) used medical masks, 38/458 (8%) used cloth masks, and 245/458 (53%) used a combination of both medical and cloth masks during the study period.
Given those numbers, it's basically impossible to use this data to tell us anything about the efficacy of cloth mask vs. no mask. The control group did wear their masks less often, but it's still very unhelpful data.
Hoo boy that's misleading by itself. The control group was "use what you normally use", and had the following numbers:
> In the control arm, 170/458 (37%) used medical masks, 38/458 (8%) used cloth masks, and 245/458 (53%) used a combination of both medical and cloth masks during the study period.
Given those numbers, it's basically impossible to use this data to tell us anything about the efficacy of cloth mask vs. no mask. The control group did wear their masks less often, but it's still very unhelpful data.