Journal
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
Volume 83, Issue 3, Pages 607-613Publisher
AMER SOC TROP MED & HYGIENE
DOI: 10.4269/ajtmh.2010.10-0005
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Funding
- National Institute of Allergy and Infectious Diseases [NO1-AI-25490]
- Centers for Disease Control and Prevention [1RO1AI069217-01]
- National Science Foundation [EF-0914866]
- Joint National Science Foundation-National Institutes of Health
- Direct For Biological Sciences
- Division Of Environmental Biology [0914866] Funding Source: National Science Foundation
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Vector competence. the probability that a vector will transmit a pathogen after feeding on an infected host, is known to vary among vector species, populations. days since feeding. and temperature during the extrinsic incubation period However, the extent of spatio-temporal variability and consistency in vector competence of populations is not known. We examined vector competence of Culex ptptens Linnaeus and Cx restuans Theobald mosquitoes for West Nile virus collected over 3 years from 17 sites to measure spatial and temporal scales of variation in vector competence We found extreme variation with 0-52% of mosquitoes transmitting West Nile virus at a single site between different sampling periods, and similar variation across populations However, we also found that within a smaller geographic range, vector competence varied somewhat synchronously, suggesting that environmental and population genetic factors might influence vector competence These results highlight the spatio-temporal variability in vector competence and the role of local processes
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