dengue
DENGUE

Dengue infection is caused by the dengue virus that belongs to the family Flaviviridae. It is generally self-limiting and rarely fatal.
There are 4 serotypes (DEN-1, DEN-2, DEN-3, DEN-4). Infection w/ dengue serotype confers lifetime protective immunity to that specific serotype; cross-protection for other serotypes is only short-term.
It is transmitted to humans through the bites of infected Aedes mosquitoes. It is primarily transmitted by female Aedes aegypti, a tropical and subtropical species.Humans & monkeys are the amplifying hosts after the mosquito bite.
After 4-10 days of incubation period, illness begins immediately.
The acute phase of illness lasts for 3-7 days, but the convalescent phase may be prolonged for a week and may be associated with weakness and depression especially in adults.

Differential Diagnosis

  • Differential diagnoses of dengue fever (DF) include a wide variety of viral (including chikungunya), bacterial, rickettsial & parasitic infections that produce a similar syndrome
  • Diagnose & treat patient appropriately for other disease states eg influenza, measles, rubella, malaria, typhoid fever, scarlet fever, Epstein-Barr virus, leptospirosis, meningococcemia, rickettsial infections, bacterial sepsis & other viral hemorrhagic fevers (chikungunya fever)
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