Depends on what the expected risks are. If the expected risks are worse than the virus, then yeah, probably not a great idea, but if the most likely downside is

Depends on what the expected risks are. If the expected risks are worse than the virus, then yeah, probably not a great idea, but if the most likely downside is just that it doesn't work... Also, testing is not large scale. The whole point is to do it in a small amount of people who are already at risk of infection.