1921
Volume 48, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Abstract

An outbreak of Japanese encephalitis (JE) occurred on Saipan, Commonwealth of Northern Mariana Islands, in October 1990. Adult and larval mosquitoes were collected during September–October 1991 to retrospectively determine the probable mosquito vector(s). Virus was not isolated from 119 mosquito pools composed of 7,250 adult specimens as follows: (14%), (39%), group (11%), species (35%), and < 1% each of , and . Three additional species were collected only as larvae: , and . Among the vectors of JE incriminated in other areas, was the predominant species in our collections and the principal species feeding on swine. This is the first published record of the occurrence of this species on Saipan. is abundant and widely distributed on the southern half of Saipan where human JE cases occurred in 1990, and where swine seroconversions were detected. Although the identity of the mosquito vector(s) responsible for the 1990 outbreak cannot be established with certainty, our results suggest that was probably involved.

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/content/journals/10.4269/ajtmh.1993.48.585
1993-04-01
2017-09-24
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