AI Article Synopsis

  • Malaria is common in Linzhi Prefecture, Tibet, but the specific mosquito responsible for spreading it was unknown until this study.
  • Researchers collected over 3,600 mosquitoes in 2007 and identified that 98% were Anopheles pseudowillmori, with a small percentage being Anopheles willmori.
  • The findings confirmed that Anopheles pseudowillmori is the primary mosquito vector for malaria in Motuo County.

Article Abstract

Background: Malaria is endemic in Linzhi Prefecture in the Tibet Autonomous Region (TAR), but the vector for malaria transmission had never been identified.

Methods: Adult Anopheles spp. were collected in Motuo County, Linzhi Prefecture on the Sino-Indian border in July and August, 2007. Multiplex PCR was adopted for species identification, and a nested PCR approach was used to detect sporozoites in the salivary glands of the mosquitoes.

Results: 3,675 mosquitoes of the Anopheles maculatus group were collected and processed for species identification. Among them, 3,602 (98.0%) were Anopheles pseudowillmori and 73 (2.0%) were Anopheles willmori. The Plasmodium vivax SSUrDNA fragment was amplified in two of 360 pooled An. pseudowillmori samples.

Conclusion: The local An. maculatus group comprises the species An. pseudowillmori and An. willmori. Anopheles pseudowillmori is considered the sole malaria vector in Motuo County in Linzhi Prefecture.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2662868PMC
http://dx.doi.org/10.1186/1475-2875-8-46DOI Listing

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