I'm not sure it's comparable, flu only kills 4x more people as cholera and honestly I'd personally like it if I could sue people for getting me sick by going out to public places when they know they are sick. (A friend of mine just gloated on twitter that he probably got 100 people sick by attending a meetup with the flu.)
That said, since most people don't seem to agree with me and just take it as normal that sicknesses get passed on with a ¯\_(ツ)_/¯ type attitude I guess I'm unsure how to hold the UN any more responsible.
You definitely can do this. They'd need to have something more serious than the flu. Forcible quarantine for severe communicable diseases is a feature of US law.
> flu only kills 4x more people as cholera
How many people have the flu, vs how many having cholera?
And he could definitely sue. USA!
Reminds me of modern universities where 75-90% of the expense is going to administrators instead of the core service (education). Which is a big reason why tuition keeps rising.
EDIT: Recent example - http://www.nytimes.com/2016/03/20/opinion/sunday/i-love-the-...