[kart23]

Ideally, they would realize that moral responsibility to save lives is greater than money in this case. I don't think money would even be a problem, public pressure would be enough if everyone knew what was at stake. The companies capable of manufacturing would still make money by selling the vaccine to governments and people.

[em500]

Probably every doctor and nurse feels moral responsibility to save lives is greater than money in any specific case. But if you cut all their compensation to minimum wage plus a bit, I doubt many will keep working in health care for very long.