diabolical squirts

I just got word from my son that he is in the green
zone at the old Saddam Hospital with a case of puking
and diarrea so bad that he was medevac'ed in there. He
is pretty much over the worst now but was told that he
will have the runs for several days. Apparently, a lot
of other folks get that there. What is it and is there
any way to prevent or control it? Any information
would be helpful?

Grandpab

It does sound like food poisoning. Usually something that affects a lot of people very quickly is food or water borne.