See if there is a passive vaccination for whatever diseases are present where you are going. This gives you just the antibodies, doesnt induce massive immune stress like the normal vaccinations that cause things like autism and whatnot. It only lasts until the antibodies are gone, 3 or 6 months maybe, but its alot safer. The only thing im not sure of is what preservatives and other lovely things would be included in that or if there are options as far as that is concerned. I would DEFINITELY make sure its a thimerosal free one, and make sure you read the box yourself, dont take the doctors word for it. Ive heard of numerous cases of doctors telling patients they were giving out thimerosal free shots, but when they demanded to see the box, found out they werent.