A few key things to consider:
Travelers should avoid known areas where there are epidemics of West Nile virus, malaria, dengue fever or other diseases.
When they bite:
Be aware of peak exposure times and places. Although mosquitoes may bite at any time of day, peak biting activity for mosquitoes that transmit dengue and chikungunya fevers is during daylight hours. Dawn, dusk and nighttime is peak for most other mosquitoes.
Dress for success:
Limit exposed skin by wearing long-sleeve shirts and long pants, boots and hats, tucking in shirts, tucking pants into socks, and wearing closed shoes. Repellents or insecticides, such as permethrin, can be applied to clothing and gear.
Check for ticks:
Inspect yourself and your clothing for ticks at the end of outdoor activity, and promptly remove them.
When sleeping areas are not adequately screened or air conditioned, bed nets are essential to prevent nighttime bites.
Use sprays, mosquito coils and repellents that contain active ingredients like metofluthin and allethrin to repel bugs. Insecticides and repellent products should always be applied with caution. Avoid inhaling spray or smoke.
Don't cover it:
Optimum protection can be provided by applying repellents to clothing and to exposed skin. Never apply repellent on skin that is or will be covered by clothing.
Source: Federal Centers for Disease Control and Prevention