Anyone nearer to the “virus less bad” side of an argument should consider signing up for this (if you’re healthy, of course). It’s a win-win because you get to gamble on quicker immunity.
Yes. I am very worried that countries are leaning towards "immunity passports". If we tell people that in order to work you must have gotten and recovered from this disease, everyone will suddenly seek to be infected. How many people will sign up for this simply because they feel they need to get this disease in order to return to work? The disease could become a valuable commodity to be sought, even purchased. If the choice is between getting the virus or remaining unemployed for the foreseeable future, I'll roll the dice.
Of course not. Nobody has any such evidence. "Immune" is an absolute term. Even a vaccine doesn't make one "immune" to a disease. So the WHO is absolutely correct in saying that. But if this disease is like the vast majority of similar infections, have had it once likely reduces one's chances of getting it a second time. Of all the viruses that cause disease, only a very few are regularly caught repeatedly.
It could very well be that the virus remains reactivatable in some people for an unknown amount of time, maybe even establishing permanent latency like HIV or herpes. Neurological effects are known to occur with this virus and the types of tissue known to be affected continues to expand.
In such a scenario, an immunity “passport” would become more of a scarlet letter.
I'll volunteer.