Seasonal Prevalence of Mosquitoes Collected from Light Traps in the Republic of Korea, 2002

  • Heung Chul (Medical Detachment(PM)) ;
  • Sung Tae (Medical Detachment(PM)) ;
  • Jason G (Medical Detachment(PM)) ;
  • Monical L (Center for Health Promotion and Preventive medicine-Pacific) ;
  • Laura A (Preventive Services Directorate) ;
  • S, Hee-Choon (Preventive Services Directorate) ;
  • Terry A (Preventive Services Directorate)
  • Published : 2004.09.01

Abstract

Adult mosquito surveillance was conducted during 2002 at 30 US military installations and training sites located in six provinces in the Republic of Korea (ROK). Adult mosquitoes were collected in New Jersey and dry ice-baited New Jersey light traps from 1 May through 15 October. Mosquito surveillance was conducted to determine threshold levels to initiate pesticide applications and identify malaria infection rates at selected Army installations and training sites. A total of 100,617 adults [82,410 (81.9%) females and 18,207 (18.1 %) males] comprising 17 species and 7 genera were collected during 2002. The most common species collected were Culex tritaeniorhynchus Giles (49.5%), Anopheles sinensis Wiedemann (30.9%), Culex pipiens Coquillett (11.8%) and Aedes vexans nipponii (Theobald) (7.1 %). Trap indices (TIs) varied widely for species over their range, due in part, to geographical distribution and degree of association with urban communities. Anopheles sinensis were collected at the same level while Culex tritaeniorhynchus increased by 27.2% in 2001, due in part to very high populations of Culex tritaeniorhynchus at Gunsan Air Base. The weekly population densities for some species were variable for each of the years, apparently as a result of variable annual weather conditions. None of Anopheles sp. assayed for plasmodium vivax (Pv) malaria infections by Enzyme Linked Immunosorbent Assay (ELISA) were positive.

Keywords

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