How to prevent from dengue fever?

Avoid Mosquitos: If you are traveling to an area where dengue is endemic, be sure to wear appropriate clothing during the day (that's when this type of mosquito is active) and a repellant. I don't know where you live or if you're traveling, but it's a broad question.

Prevention: You can avoid travel to areas where Dengue is endemic. Protect against mosquitoes wi permethrin applied to long pants, long sleeved shirts, shoes / socks & 10% DEET for skin. When in endemic areas avoid being out at dusk or dawn. Ensure that building has good screens on window & use bed netting. As of this writing 6 vaccines are in development phase for Dengue Fever.

Dengue fever is: Caused by a virus spread by bite of mosquito, aedes aegypti, found in tropic and subtropic regions. Dengue fever is being seen more often in world travelers. Although uncomfortable, dengue fever is not deadly. Clothing, mosquito repellent, and netting can help reduce exposure to mosquitoes. Traveling during periods of low mosquito activity can also be helpful. Thank you for this important question.

Mosquito patrol: Keep roof gutters clean from debris. Don’t allow standing water – empty kiddy pools & change water in birdbaths regularly. Many outdoor items can be purchased that have been pre-treated with permethrin. Use bed netting when sleeping. Spray the walls of the home with insecticide. Wear long pants & long sleeved shirts from dusk to dawn. Use Permethrin spray on clothing and mosquito netting.