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Dengue: Immunity's Tricky Twist Revealed
20 Jul
Summary
- Dengue infections don't confer lasting immunity against all strains.
- The virus has four distinct serotypes or strains.
- Recovery from one dengue strain only protects against that specific type.

While monsoons offer relief from heat in India, they also herald the return of dengue, a significant seasonal health concern. Many people mistakenly believe that recovering from dengue provides long-term immunity. However, this is not the case due to the virus's complex nature.
Dengue is caused by a virus that presents in four different forms, known as serotypes or strains. Infection by one specific strain typically grants immunity only to that particular strain. Consequently, individuals remain susceptible to infection by the other three dengue serotypes.