DENV is the virus that causes the mosquito-born viral infection – Dengue. There are 4 DENV serotypes – DENV-1, DENV-2, DENV-3 and DENV-4. All four of these interact differently with antibodies present in the blood serum.
DENV-1 and DENV-2 are the most prominent in India. DENV-2 and DENV-4 are more dangerous as the infection may cause numerous complications. 11 Indian states have recorded a spike in the number of dengue infections because of the DENV-2. It is increasing the severity and death rate of the viral infection in the country.


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