I just got back from the Red Cross, they had some questions about my having been in Belize in April.
They did, however, upon learning that I was at Ambergris Caye only, take my blood.
The general limitation is six months after visiting a malaria area. They were unclear on exactly where in Belize constitutes those area, but they seemed confident that AC does not represent a problem.
Man, I saw lines at the gas stations like I haven't seen since just after the '73 Yom Kipper war.