EMERGENCE OF A NEW EPIDEMIC EPIZOOTIC VENEZUELAN EQUINE ENCEPHALITIS-VIRUS IN SOUTH-AMERICA

被引：77

作者：

RICOHESSE, R

WEAVER, SC

DESIGER, J

MEDINA, G

SALAS, RA

机构：

[1] UNIV CALIF SAN DIEGO,DEPT BIOL,LA JOLLA,CA 92093

[2] CTR NACL INVEST AGROPECUARIAS,INST INVEST VET,MARACAY,VENEZUELA

[3] MINIST SALUD,INST NACL HIGIENE RAFAEL RANGEL,CARACAS,VENEZUELA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1995年 / 92卷 / 12期

关键词：

MOLECULAR EVOLUTION; EPIDEMIOLOGY; EMERGING VIRUS;

D O I：

10.1073/pnas.92.12.5278

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

One of the most important questions in arbovirology concerns the origin of epidemic Venezuelan equine encephalitis (VEE) viruses; these viruses caused periodic, extensive epidemics/epizootics in the Americas from 1938-1973 (reaching the United States in 1971) but had recently been presumed extinct. We have documented the 1992 emergence of a new epidemic/epizootic VEE virus in Venezuela. Phylogenetic analysis of strains isolated during two outbreaks indicated that the new epidemic/epizootic virus(es) evolved recently from an enzootic VEE, virus in northern South America. These results suggest continued emergence of epizootic VEE viruses; surveillance of enzootic viruses and routine vaccination of equines should therefore he resumed.

引用

页码：5278 / 5281

页数：4

共 27 条

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