Vaccinations??

I'm a veterinarian, been travelling the caribbean, central and south america for 20 yr. on Hep A immunization only. Got travellers diarrhea once, at which time packing Ciprofloxacin paid off. Malaria is rare, almost nobody takes med for that. I think there's a FAQ or 2 here on this subject, click on the first 2 posts. Also search "malaria manifesto" written by a real doctor (I'm just a figment of the imagination).

I tend to follow the adivce of the CDC for the country/ies I’m visiting:
http://wwwnc.cdc.gov/travel/destinations/list.htm

At least be sure you're up to date on routine vaccines like diphtheria/tetanus and measles/mumps/rubella; many adults in the US aren't and some of those illnesses are horrible and still prevalent in developing countries. In my opinion everyone should have Hep A, too.

There may be no requirements for any shots before you enter the countries, but it's up to you to assess your own risk.

If staying in resorts and not doing anything except going in the swimming pool, or staying in hotels in cities or towns, I wouldn't bother with shots.
If staying & eating low budget, or swimming in the sea, or doing any other activities, I'd make sure my tetanus and hepatitis shots were up to date.
If camping in the rainforest, add antimalaria drugs.

But dengue can also be a problem -- best to take steps to avoid being bitten.

Tetanus & hepatitis shots are something you should have anyway wherever you live.
FOR ME -- I wouldn't get typhoid, diptheria, cholera or yellow fever, but your case might be different.

If you have any intestinal problems, just get a stool sample.

Best prevention for the region for most travelers is Tetnus Booster if you have not had one in 10 years, and Hep A-B, Hep B especially if your sexually active, regardless of country.

Dyptheria/Typhoid is not a bad one to have very cheap anyway. But most westerners got this shot in the school years.

Well I can only go by personal experience but I'd say that if you're from the UK (I couldnt see a location on your profile) I'd recommend booking in to see a travel nurse and getting all the free vaccines and having a chat with him or her and getting the prices for what they recommend and then coming away and checking the prices for other clinics such as MASTA. I found it was a lot cheaper to go through them for my Hep B and Rabies Boosters and Yellow Fever.

Rabies?

i'm from the states and i've been living here for over a year and haven't had any problems. i have had hep-a vaccine in the past and tetnus shots but thats about it. i wouldn't worry about it. i drink tap water and eat street food too...

I get yearly flu shots. Pneumococcus vaccine too, a few years ago. Plus, I'm a strong believer in Belikin - it's good for what ails you!

I am with Ariana, throw in a bottle of rum to cure other things too when ill while your at it...