Dengue and chikungunya are mosquito borne diseases that are caused by viral infection. The symptoms of both the diseases seem to be quite common but a little awareness can be helpful in knowing the difference between dengue and chikungunya.
Dengue is caused by Aedes Agypti mosquito and the vectors of chikungunya are Aedes Aegypti and Aedes Albopictus mosquitoes.
Chikungunya is cause by infection of chikungunya virus (CHIKV) whereas dengue can be caused by any of four serotypes of dengue virus namely, DENV 1, DENV 2, DENV 3 and DENV 4.
When a dengue infected mosquito bites a person, the time taken for the onset of the disease is three to four days whereas in the case of chikungunya the symptoms appear in a week’s time after the infected mosquito bites the victim.
Dengue is characterised by the abrupt onset of high fever, pain behind the eyes, severe headache, muscle, joint pains, vomiting, nausea and skin rashes. Bleeding is also common in the cases of dengue haemorrhagic fever. The symptoms of chikungunya include fever, chills, nausea, headaches and arthiritis (joint pain) in some of the cases. Unlike dengue there is no bleeding or shock reported in chikungunya.
The diagnosis of dengue is done by the following ways:
Chikunguniya is diagnosed by virus isolation test, antibody testing of IgM as well as by genetic identification of virus gene structures. Detection of either C or E1 genome indicates positive result, similarly increased antibody also marks presence of chikungunya virus.
Read more articles on Understand Dengue.
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