NON-VIREMIC TRANSMISSION OF TICK-BORNE ENCEPHALITIS-VIRUS - A MECHANISM FOR ARBOVIRUS SURVIVAL IN NATURE

Citation
M. Labuda et al., NON-VIREMIC TRANSMISSION OF TICK-BORNE ENCEPHALITIS-VIRUS - A MECHANISM FOR ARBOVIRUS SURVIVAL IN NATURE, Experientia, 49(9), 1993, pp. 802-805
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Multidisciplinary Sciences
Journal title
ISSN journal
0014-4754
Volume
49
Issue
9
Year of publication
1993
Pages
802 - 805
Database
ISI
SICI code
0014-4754(1993)49:9<802:NTOTE->2.0.ZU;2-T
Abstract
The vectors of arthropod-borne viruses (arboviruses) become infected b y feeding on the viraemic blood of an infected animal. This theory is based on transmission studies involving artificial infection of verteb rate hosts by syringe inoculation. To reproduce natural conditions of virus transmission, infected and uninfected vectors (ticks) of tick-bo rne encephalitis virus, the most important arbovirus in Europe, were a llowed to feed together on uninfected wild vertebrate hosts. The great est numbers of infected ticks were obtained from susceptible host spec ies that had undetectable or very low levels of viraemia. The results suggest that 'nonviremic transmission' is an important mechanism for t he survival of certain arboviruses in nature.