Hubby and I were in Belize (in the most beautiful place in the world, I think)...don't knw what I caught - actually WE caught, but I have never hurt tha bad before....fevers abve 102, eye pain, nausea, etc.........after a week I noticed I had problems with ,y vision ( was 20/10 before). Within 6 months I was dx'ed, in ICU and had a thymectomy. Granted, looking back I was always, always sick with SOMETHING and had seen my PCP fr years regarding lack of energy, but that bug was the straw that brke the camels back, so to speak..........it was awful. Sadly, I did not go to the dr. ust stayed in bed, so I will never know what it was........Hope this helps! Erin Hermes