May 30, 2024

West Nile fever

  • The Kerala government issued an alert in the State against West Nile fever.
  • The infection was confirmed after samples of blood and cerebrospinal fluid of suspected patients.
  • The West Nile Virus(WNV) is a single-strained RNA virus that originates in birds and is propagated via the bite of infected Culex mosquitoes among humans and animals.
  • Those infected often experience dengue-like symptoms such as fever, headache, tiredness, body aches etc.
  • The disease is spread by the Culex species of mosquitoes.
  • There has been low human-to-human transmission.


  • It is a mosquito-borne viral infection.
  • The West Nile Virus (WNV) was detected for the first time in a woman in the West Nile district of Uganda in 1937.
  • The fever is spread by the Culex species of mosquitoes.
  • In India, the fever was first detected in 2011.
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