Without fail, every time my wife and I go to bali one of us ends up with serious respitory problems ( flu like symptoms )puts us out of action for a couple of days. Have asked my doctor what causes this but he is of no help.My theory is that it is the air conditioning units or too many bintangs. We take antibiotics with us and alltough they may to avoid help decrease the period of suffering it would be helpfull to know how to avoid the problem in the first place.Will take any advice on board for consideration I am sure we are not the only ones that suffer from this problem.