Tips for Travelers

To avoid insect bites:

Make sure to drink water from a safe source. If this is not possible, boil the water. When traveling through the cities and towns, bottled or carbonated water is preferable. Check to see that the seal on the cap is unopened and undamaged.
Choose restaurants and food centers that guarantee appropriate levels of hygiene.

To protect oneself from the tropical sun:

Dress in clothing made of natural fibers (cotton, linen, etc), light, loose: preferably in lighter colors.

If planning to visit rural or mountainous areas of the country (the Dominican Republic houses the highest peak in the Antilles), bring a jacket for the colder climate.

Do not walk barefoot; keep feet dry and clean. Choose wide and ventilated shoes.

Bring a mini first-aid kit containing an antihistamine, aspirin, decongestant, expectorant, acetaminophen, anti-diarrhea medication, antacid, gentle laxative, digital thermometer, cotton, adhesive bandages, hand disinfectant, eye drops and any personal medications. Regarding the latter point, it is recommended to carry of copy of current, pertinent prescriptions.

Always carry a small card where blood type is indicated, as well as any other condition, allergy or medication prohibition, or if a special pharmaceutical is taken that third parties should know about in case of an emergency situation.

If practicing any water activity, use a good lifejacket and/or take all precautions. Watch children while they are in the water.
Recommended links:

WHO: http://www.who.int/es/
www.who.int/ith/en/
whqlibdoc.who.int/publications/2005/9241580364_country_list.pdf