Everyone is prone from acquiring dengue. For now, the cure is still not found but luckily, experts are working on finding one. There are also no vaccines to prevent oneself from having dengue. The only protection you have is a basic knowledge of not getting bitten by the mosquito that carries the disease. Here are some tips on how to prevent dengue: 
- Use an insect repellent – Insect repellents contain an ingredient called N-diethylmetatoluamide (DEET) which protects our skin from insect bites.
- Wear long sleeves and pants – Wearing of clothes with long sleeves and pants will help because mosquitoes will not be able to bite through these protective clothes.
- Sleep under a mosquito net – To avoid and prevent be bitten at night while you are sleeping.
- Be aware of your environment - Avoid being outdoors at dawn, dusk and early evening, when more mosquitoes are out.  The mosquitoes that carry the dengue virus typically live in and around houses, breeding in standing water that can collect in such things as used automobile tires. Reduce the breeding habitat to lower mosquito populations. 
 NHS Choices
 Mayo Clinic