Recent Update on Dengue Illnesses
Dengue virus (DV) is a single stranded RNA virus belonging to the Flaviridae family. It has been classified into four serotypes, DENV-1, DENV-2, DENV-3, and DENV-4, which are genetically and antigenically different. DENV 1 and DENV-3 are less dangerous than DENV2 and DENV4, out of which type 4 is less virulent than type 2. Infection with one dengue serotype confers lifelong immunity to that serotype but may result in an increased risk of complications if subsequently infected with another serotype. The virus is sensitive to heat and is susceptible to many common disinfectants including ethanol, sodium hypochlorite and glutaraldehyde.
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