Volume 92, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Two species of were collected in response to the first chikungunya virus (CHIKV) outbreak on Yap Island: the native species Farner and the introduced species (L.). Fourteen CHIKV-positive mosquito pools were detected. Six pools were composed of female , six pools were composed of female , one pool was composed of male , and one pool contained female specimens identified as () spp. Infection rates were not significantly different between female and . The occurrence of human cases in all areas of Yap Island and the greater number of sites that yielded virus from combined with the ubiquitous distribution of this species incriminate as the most important vector of CHIKV during the outbreak. Phylogenic analysis shows that virus strains on Yap are members of the Asia lineage and closely related to strains currently circulating in the Caribbean.

[open-access] This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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  • Received : 17 Jun 2014
  • Accepted : 13 Oct 2014
  • Published online : 04 Feb 2015

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