Dengue fever is a contagious illness that attacks the immune system of the body. It is caused by the dengue virus which is transmitted to humans via the bite of an infected Aedes mosquito.The dengue virus causes dengue fever; when a mosquito bites an infected person, it becomes a carrier that can easily pass on the virus to the next person it bites. It usually develops within four to seven days after being bitten by an infected mosquito. There is no dengue vaccine. There are different types of dengue viruses that cause the dengue infection. Dengue hemorrhagic fever or dengue shock syndrome is a severe form of dengue fever that is fatal in some cases.
A complete blood count blood test will be done to check for white blood cell increase and platelet reduction due to the virus.