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Titolo:
Host feeding of mosquitoes (Diptera : Culicidae) associated with the recurrence of Rift Valley fever in Egypt
Autore:
Gad, AM; Farid, HA; Ramzy, RRM; Riad, MB; Presley, SM; Cope, SE; Hassan, MM; Hassan, AN;
Indirizzi:
Marine Corps Combat Dev Command, Training Programs Br C 464, Quantico, VA 22134 USA Marine Corps Combat Dev Command Quantico VA USA 22134 ntico, VA 22134 USA Ain Shams Univ, Res & Training Ctr Vectors Dis, Cairo, Egypt Ain Shams Univ Cairo Egypt Res & Training Ctr Vectors Dis, Cairo, Egypt USN, Med Res Unit 3, Cairo, Egypt USN Cairo EgyptUSN, Med Res Unit 3, Cairo, Egypt
Titolo Testata:
JOURNAL OF MEDICAL ENTOMOLOGY
fascicolo: 6, volume: 36, anno: 1999,
pagine: 709 - 714
SICI:
0022-2585(199911)36:6<709:HFOM(:>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
CULEX-PIPIENS; VIRUS; PATTERNS; GOVERNORATE; TRANSMISSION; KENYA;
Keywords:
mosquito; blood meal; Rift Valley fever; Egypt;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Gad, AM Marine Corps Combat Dev Command, Training Programs Br C 464, 3300 Russell Rd, Quantico, VA 22134 USA Marine Corps Combat Dev Command 3300 Russell Rd Quantico VA USA 22134
Citazione:
A.M. Gad et al., "Host feeding of mosquitoes (Diptera : Culicidae) associated with the recurrence of Rift Valley fever in Egypt", J MED ENT, 36(6), 1999, pp. 709-714

Abstract

In 1993, Rift Valley fever (RVF) virus reappeared in Egypt. We determined the prevalence and feeding patterns of mosquitoes in 5 villages where the virus was active. Of 10 species recovered, Aedes caspius (Pallas), Culex pipiens L., Cx. antennatus (Becker), and Cx, perexiguus Theobald constituted 99% of >35,000 mosquitoes captured in dry ice-baited CDC light traps. Ae. caspius was most prevalent, except at Nag' El Hagar where it was replaced by Cx. perexiguus. Cx. pipiens ranked 2nd, except at Nag' El Ghuneimiya, whereit was replaced by Cx. antennatus. Most blood meals analyzed by an enzyme-linked immunosorbent assay reacted to greater than or equal to 1 antiserum. Cx. pipiens was mainly anthropophagic, and therefore may have been the main vector of RVF virus among humans. Ae. caspius feeds were chiefly from humans, bovines, and equines. Cx. antennatus and Cx. perexiguus fed generally on bovines. Mixed blood meals from humans and RVF virus susceptible animalswere identified in the predominant mosquitoes. Prevalence and host selection, as well as predicted probability for a blood meal being interrupted, indicated that AE. caspius may have served as a bridge vector between humans and bovines in 4 of the villages. Cx. perexiguus may have played this role at Nag' El Hagar. Because potential vectors are abundant, susceptible domestic animals are associated closely with humans, and surveillance of imported livestock is not systematic, we conclude that RVF virus sporadically willrecur in Egypt.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/07/20 alle ore 22:31:41