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Continued Evidence of Decline in the Enzootic Activity of Western Equine Encephalitis Virus in Colorado
- Source :
- Journal of Medical Entomology. 56:584-588
- Publication Year :
- 2018
- Publisher :
- Oxford University Press (OUP), 2018.
-
Abstract
- Western equine encephalitis (WEE) was once prevalent and routinely isolated from mosquitoes in Colorado; however, isolations of Western equine encephalitis virus (WEEV) have not been reported from mosquito pools since the early 1990s. The objective of the present study was to test pools of Culex tarsalis (Coquillett) mosquitoes sampled from Weld County, CO, in 2016 for evidence of WEEV infection. Over 7,000 mosquitoes were tested, but none were positive for WEEV RNA. These data indicate that WEEV either was not circulating enzootically in Northern Colorado, was very rare, and would require much more extensive mosquito sampling to detect, or was heterogeneously distributed spatially and temporally and happened to not be present in the area sampled during 2016. Even though the reported incidence of WEE remains null, screening for WEEV viral RNA in mosquito vectors offers forewarning toward the detection and prevention of future outbreaks.
- Subjects :
- Colorado
030231 tropical medicine
Culex tarsalis
Mosquito Vectors
Biology
medicine.disease_cause
Arbovirus
Encephalitis Virus, Western Equine
03 medical and health sciences
0302 clinical medicine
parasitic diseases
medicine
Animals
Viral rna
Western equine encephalitis virus
Western equine encephalitis
General Veterinary
fungi
Outbreak
medicine.disease
Virology
Culex
Infectious Diseases
Insect Science
Enzootic
Female
Parasitology
Subjects
Details
- ISSN :
- 19382928 and 00222585
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- Journal of Medical Entomology
- Accession number :
- edsair.doi.dedup.....085751adb2703c66953894bfe1a71100