Experimental Vertical Transmission of Saint Louis Encephalitis Virus by Florida Mosquitoes
Abstract
Vertical transmission of St. Louis encephalitis (SLE) virus to F1 larval progeny was demonstrated in 8 species of mosquitoes which occur in Florida: Culex quinquefasciatus, Cx. nigripalpus, Cx. salinarius, Cx. restuans, Cx. opisthopus, Anopheles quadrimaculatus, An. albimanus, and Aedes taeniorhynchus. Relatively high rates of such transmission were observed in Ae. taeniorhynchus and vertical transmission to F1 adult progeny and venereal transmission from males to females also were demonstrated with this species. Larval rearing temperature affected transstadial transmission of the virus in Ae. taeniorhynchus, especially to the adult stage. Such transmission was observed with a larval rearing temperature of 18 degrees C but not at 27 degrees C. Because of the abundance and distribution of Ae. taeniorhynchus in Florida, and the relatively high rates of vertical transmission of SLE virus observed in the present experiments, this mosquito species warrants further investigation as a possible overwintering host for the virus in that locality.
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Aedes taeniorhynchus can transmit eastern equine and St. Louis encephalitis, and West Nile virus, but it has never been implicated as a major vector of these diseases in Nature.
“Aedes taeniorhynchus can transmit eastern equine and St. Louis encephalitis [27,28], and West Nile virus [28] but it has never been implicated as a major vector of these diseases in Nature.”
From North American Wetlands and Mosquito Control (2012) · cites this paper as [27]
Many of the mosquito species in bottomland swamps are known vectors of several arboviruses including those that can cause eastern equine encephalitis, western equine encephalitis and West Nile virus.
“Many of these species are known vectors of several arboviruses including those that can cause eastern equine encephalitis, western equine encephalitis and West Nile virus [27,75].”
From North American Wetlands and Mosquito Control (2012) · cites this paper as [27]
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North American Wetlands and Mosquito Control
Rey, J., Walton, W., Wolfe, R., Connelly, C., O'Connell, S., Berg, J., Sakolsky-Hoopes, G., & Laderman, A. (2012) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph9124537 · Cited by 85 · see citing works
“Louis encephalitis [27,28], and West Nile virus [28] but it has never been implicated as a major vector of these diseases in Nature.”
BackgroundCoastal wetland management in Florida: Environmental concerns and human health
Rey, J. R., Carlson, D. B., & Brockmeyer, R. E. (2012) · Wetlands Ecology and Management · doi:10.1007/s11273-011-9235-1 · Cited by 42 · see citing works
- Authors
- Nayar, J. K., Rosen, L., & Knight, J. W.
- Affiliations
- University of Florida (US)
- and Arbovirus Program, Pacific Biomedical Research Center, University of Hawaii, 3675 Kilauea Avenue, Honolulu, Hawaii 96816
- Venue
- The American Journal of Tropical Medicine and Hygiene
- Published
- 1986-11
- Volume
- 35
- Issue
- 6
- Pages
- 1296-1301
- ISSN
- 0002-9637 (ISSN-L)
- OpenAlex
- W2399327277
- Cited by
- 52
- References
- 0
- Citations by year
- 2026: 1 · 2024: 1 · 2023: 1 · 2021: 2 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 4 · 2016: 2 · 2015: 1 · 2014: 3 · 2013: 1 · 2012: 3
- FWCI
- 1.76
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Tropical Medicine and Hygiene (publishedVersion)
- PubMed (publishedVersion)
- Funders
- U.S. Public Health Service (17952)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Mosquito-borne diseases and control
- Health Sciences › Medicine › Infectious Diseases › Viral Infections and Vectors
- Life Sciences › Immunology and Microbiology › Parasitology › Vector-borne infectious diseases
- Keywords
- St. Louis encephalitis virus, vertical transmission, mosquito vectors, Aedes taeniorhynchus, Culex quinquefasciatus, Anopheles quadrimaculatus, Anopheles albimanus, transstadial transmission, venereal transmission, larval rearing temperature, overwintering hosts
- MeSH terms
- Aedes, Animals, Anopheles, Culex, Encephalitis Virus, St. Louis, Encephalitis, St. Louis, Female, Florida, Insect Vectors, Male, Culicidae
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