Dossier
observational studies
Coverage of observational studies in the Nexus archive.
- Here's how the CDC tried to use bad science to convince people to wear masks during COVID
The article claims the CDC promoted mask-wearing during COVID using low-quality research, citing a study by Vinay Prasad and Tracey Beth Hoeg. Their analysis found 77 CDC studies on masks published after 2019, with 30% lacking comparative groups and none being randomized trials, suggesting flawed evidence.