Dengue fever is an acute vector-borne disease caused by the transmission of dengue virus through mosquito vectors. Clinical manifestations include high fever, headache, muscle, joint pain, rash, bleeding tendency, lymphadenopathy, decreased white blood cell count, and thrombocytopenia. It is one of the main causes of child death in Southeast Asia.
Cause
Source of infection
Patients and people with latent infection are the main source of infection. The patient was most contagious within 1 day from the onset of the disease to 3 days after the onset of the disease. A small number of patients can also isolate the virus from the blood on the third day after the heat withdrawal. In addition, dengue virus antibodies can be detected in animals such as bats, monkeys, birds and dogs, which may be the natural host of dengue virus, which may become a source of infection for this disease.
2. Media
Mosquitoes are the main vector of the disease, and Aedes mosquitoes are the main mosquito species that transmit dengue virus, including Aedes aegypti and Aedes albopictus.
3. Susceptibility
Most of the age groups in the new epidemic areas are susceptible but most of them are young and middle-aged.
