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Titolo:
Transmission of arboviruses without involvement of arthropod vectors
Autore:
Kuno, G;
Indirizzi:
Ctr Dis Control & Prevent, Natl Ctr Infect Dis, Div Vector Borne Infect Dis, Arbovirus Dis Branch, Ft Collins, CO 80522 USA Ctr Dis Control & Prevent Ft Collins CO USA 80522 t Collins, CO 80522 USA
Titolo Testata:
ACTA VIROLOGICA
fascicolo: 3, volume: 45, anno: 2001,
pagine: 139 - 150
SICI:
0001-723X(200106)45:3<139:TOAWIO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
EQUINE ENCEPHALITIS-VIRUS; TICK-BORNE ENCEPHALITIS; YELLOW-FEVER VACCINE; WEST-NILE-VIRUS; VESICULAR STOMATITIS; BLUETONGUE VIRUS; OVERWINTERING MECHANISM; AIRBORNE CHALLENGE; ORAL IMMUNIZATION; IMMUNE-RESPONSE;
Keywords:
arbovirus; transmission mechanism; direct transmission; contact transmission;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
145
Recensione:
Indirizzi per estratti:
Indirizzo: Kuno, G Ctr Dis Control & Prevent, Natl Ctr Infect Dis, Div Vector Borne Infect Dis, Arbovirus Dis Branch, POB 2087, Ft Collins, CO 80522 USA Ctr DisControl & Prevent POB 2087 Ft Collins CO USA 80522 522 USA
Citazione:
G. Kuno, "Transmission of arboviruses without involvement of arthropod vectors", ACT VIROLOG, 45(3), 2001, pp. 139-150

Abstract

Transmission of arboviruses (arthropod-borne viruses belonging to various virus families) without involvement of arthropod vectors has been documented for years, but the reports have not been reviewed systematically. The recent report of West Nile (WIN) virus isolation from a hawk in mid-winter in New York (Garmendia et al., J. Clin. Microbiol. 38, 3110-3111, 2000) generated a considerable interest in this mode of arbovirus transmission. In thisarticle, the data available worldwide are analyzed according to the factors involved in such a transmission under natural conditions, mode of infection, virus entry mechanism, administration and efficacy evaluation of vaccines, and significance in agricultural trade and public health. Analysis of numerous reports compiled for this review revealed that peroral and intranasal/aerosol transmissions are very common among arboviruses. The mechanism of virus infections in animals was most extensively studied for intranasal/aerosol infection, confirming two routes of virus spread to central nervous system (CNS), olfactory and hematogenous. To rule out the possibility of asymptomatic, cryptic infection the efficacy evaluation of candidates for vaccines against neurotropic arboviruses should include virus isolation from tissues of not only symptomatic but also of asymptomatic animals that survive intranasal virus challenge. Human activities, such as feeding livestock animals with food containing virus-contaminated meat and assembling a large number of livestock from many geographically-separated locations, have beenidentified as a cause of spread of some arboviral diseases. Despite numerous laboratory reports, the significance of this mode of transmission of arboviruses under natural conditions was rarely investigated, except for a fewviruses important for veterinary medicine.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 08:51:07