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What is Anopheles stephensi?

Dec. 27, 2025

Urban malaria, driven largely by the spread of invasive vector Anopheles stephensi in metropolitan areas like Delhi, has emerged as a national concern threatening India’s goal of eliminating the mosquito-borne disease by 2030, according to the Health Ministry’s recently released Malaria Elimination Technical Report, 2025.

About Anopheles stephensi:

  • It is an invasive mosquito species originating from parts of Southeast Asia and the Arabian Peninsula.
  • It is a major malaria vector.
  • It has recently spread to parts of Africa, posing a growing public-health concern.
  • Unlike most malaria vectors, it is adept at colonizing urban environments.
  • It can breed in tiny amounts of water year-round and has made a comfortable home in urban areas.
  • Throughout its natural range, Anopheles stephensi is an important vector for both Plasmodium falciparum and Plasmodium vivax.
  • In urban areas, An. stephensi is found throughout the year but is most abundant in the summer months (between June and August), which coincides with the peak period of malaria transmission.

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