2 ms·
What I don't understand... the UK was already doing challenge studies (intentionally infecting consenting volunteers). Why didn't they make one with masks? Rea
by tgsovlerkhgsel 5y ago
What I don't understand... the UK was already doing challenge studies (intentionally infecting consenting volunteers).
Why didn't they make one with masks? Really can't be that hard to take a known infected person, sit them on a chair, arrange 100 people around them for a few hours with masks applied in a checkerboard pattern, and observe the results.
This is usually out of question for ethical reasons, but they already decided that that wasn't an obstacle, so why not (also) do a study on this?
(Or rather, arrange 10x 10 people, in 5 rounds putting a mask on the infected person.)
- mattzito 5y agoThe challenge studies they’re doing involve infecting people with measure doses of the virus. An infected person may or may not be shedding at that particular moment. Once they’ve established the MED to infect someone, they could potentially do a study with aerosols and masks, but even then, trying to simulate the right airflow and volume of viral particles is probably too difficult to be practical.