If the challenge trial is done properly (i.e. with a representative sample of the population) then wouldn't all risks - both known and not-yet-known - apply to both the trial participants as well as the general population?
Agree - just with the trial you will have a 100 percent chance or being exposed directly to the virus. Not saying the risk isn't worth taking, just that the only risk is not death.
Sadly I agree - though we've got to remember it is possible to get this virus and the transmission under control - plenty of places are winning the battle - it just takes will and coordination. But something every country has currently...
