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Titolo:
La Crosse encephalitis virus habitat associations in Nicholas County, WestVirginia
Autore:
Nasci, RS; Moore, CG; Biggerstaff, BJ; Panella, NA; Liu, HQ; Karabatsos, N; Davis, BS; Brannon, ES;
Indirizzi:
Ctr Dis Control & Prevent, Div Vector Borne Infect Dis, Natl Ctr Infect Dis, Publ Hlth Serv,US Dept Hlth & Human Serv, Ft Collins, CO 80522 USA Ctr Dis Control & Prevent Ft Collins CO USA 80522 t Collins, CO 80522 USA Virginia Polytech Inst & State Univ, Dept Entomol, Blacksburg, VA 24061 USA Virginia Polytech Inst & State Univ Blacksburg VA USA 24061 VA 24061 USA W Virginia State Dept Hlth & Human Resources, Div Surveillance & Dis Control, Charleston, WV 25301 USA W Virginia State Dept Hlth & Human Resources Charleston WV USA 25301 USA
Titolo Testata:
JOURNAL OF MEDICAL ENTOMOLOGY
fascicolo: 4, volume: 37, anno: 2000,
pagine: 559 - 570
SICI:
0022-2585(200007)37:4<559:LCEVHA>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
AEDES-TRISERIATUS; LACROSSE ENCEPHALITIS; CALIFORNIA ENCEPHALITIS; ENDEMIC AREA; MOSQUITOS; CONTAINERS; INFECTIONS; MINNESOTA; WISCONSIN; ILLINOIS;
Keywords:
Aedes triseriatus; Aedes canadensis; La Crosse encephalitis virus; mosquito ecology;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Nasci, RS Ctr Dis Control & Prevent, Div Vector Borne Infect Dis, Natl CtrInfect Dis, Publ Hlth Serv,US Dept Hlth & Human Serv, POB 2087, Ft Collins, CO 80522USA Ctr Dis Control & Prevent POB 2087 Ft Collins CO USA 80522 22USA
Citazione:
R.S. Nasci et al., "La Crosse encephalitis virus habitat associations in Nicholas County, WestVirginia", J MED ENT, 37(4), 2000, pp. 559-570

Abstract

Aedes triseriatus (Say) population density patterns and La Crosse encephalitis virus infection rates were evaluated in relation to a variety of habitat parameters over a 14-wk period. Ovitraps and landing collections were used in a La Crosse virus-enzootic area in Nicholas County, WV. Studs sites were divided into categories by habitat type and by proximity to the residences of known La Crosse encephalitis cases. Results demonstrated that Ae. triseriatus population densities were higher in sugar maple/red maple habitats than in hemlock/mixed hardwood habitats or in a site characterized by a large number of small red maple trees. Sites containing artificial containers had higher population densities than those without. La Crosse virus minimum infection rates in mosquitoes collected as eggs ranged fi om 0.4/1,000 to 7.5/1,000 in the 12 study sites, but did not differ significantly among sites regardless of habitat type or proximity to human case residences. La Crosse virus infection rates in landing Ae. triseriatus mosquitoes ranged from 0.0/1,000 to 27.0/1,000. La Crosse virus was also isolated from host-seeking Ae. canadensis (Theobald) in two study sites, at rates similar to those found in the Ae. triseriatus populations. The Ae. triseriatus ovipositionpatterns and La Crosse virus infection rates suggest that this mosquito species disperses readily in the large woodlands of central West Virginia. The La Crosse enzootic habitats in Nicholas County, WV, are contrasted with those studied in other geographic regions where La Crosse virus is found.

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Documento generato il 07/08/20 alle ore 06:58:52