Dengue fever is a viral disease which is caused by a virus of 4 types.
Each type of the virus causes the fever that in the majority of cases ends with recovery. After treatment, the patient acquires a strong immunity only to the type of virus that caused the fever. This means there is a risk of re-infection with another type of the dengue virus.
The symptoms of the dengue fever depend on the form of the disease. Let’s review them in turn.