It's already working. I have a thread going about vaccination trials here in Wichita and in the article they interviewed a guy who signed up for it. Below is a quote from the article about what the guy had to say.

Wichita researchers seek 2,000 candidates for COVID-19 vaccine study

"Bennett signed up because he, like many, wants to help the world he lives in 'get back to a reasonable sense of normalcy.' 'I want this to be over with. The sooner we get a vaccine, the sooner people can go back to their lives. And if I can help do that, that’d be great. And on the selfish end, it also would be nice to have some extra money.'”

[link to www.ksn.com (secure)]