Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

Volume 11, Number 12—December 2005

Research

Postepizootic Persistence of Venezuelan Equine Encephalitis Virus, Venezuela

Juan-Carlos Navarro*, Gladys Medina†, Clovis Vasquez‡, Lark L. Coffey§, Eryu Wang§, Alexander Suárez*‡, Hernán Biord#, Marlene Salas¶, and Scott C. Weaver§Comments to Author 
Author affiliations: *Universidad Central de Venezuela, Caracas, Venezuela; †Instituto Nacional de Investigaciones Agropecuarias, Maracay, Venezuela; ‡Instituto Nacional de Higiene, Caracas, Venezuela; #Sociedad Venezolana de Ciencias Naturales, Venezuela; ¶Ministerio de Agricultura y Tierras, Barinas, Venezuela; §University of Texas Medical Branch, Galveston, Texas, USA

Main Article

Table 2

Serologic results from equines, bovines, and wild mammals in regions of the 2000 and 2003 VEEV outbreaks*

Location Dates of collection Species or common name No. collected Fraction HI seropositive Fraction of HI-positive samples positive by PRNT PRNT titers
Obispos May 2002 Proechimys guairae 10 0/10 NT NT
Zygodontomys brevicauda 47 0/47 NT NT
Zamora May 2003 Akodon urichi 2 0/2 NT NT
Oryzomys talamancae 1 0/1 NT NT
Sigmodon hispidus 13 0/13 NT NT
Zygodontomys brevicauda 1 0/1 NT NT
Didelphis marsupialis 2 0/2 NT NT
Proechimys guairae 18 0/18 NT NT
Rattus rattus 2 0/2 NT NT
Bovines 4 0/4 NT NT
June 2003 Proechimys guairae 6 1/6 0/1 <20
Sep 2003 Didelphis marsupialis 1 1/1 0/1 <20
Proechimys guairae 11 4/11 0/4 <20
Sigmodon hispidus 1 1/1 0/1 <20
Bovines 20 0/20 NT NT
Nov 2003 Proechimys guairae 10 0/10 NT NT
Sigmodon hispidus 1 1/1 NT NT
Arismendi Oct–Nov 2003 Bovines 48 12/48 8/12 40–640
Antonio Jose de Sucre/Zamora June 2003 Proechimys guairae 3 0/3 NT NT
Didelphis marsupialis 1 0/1 NT NT
Totals Wild mammals 130 7/130 (5%) 0/7 <20
Bovines 72 12/72 (17%) 8/12 40–640

*VEEV, Venezuelan equine encephalitis virus; HI, hemagglutination inhibition; PRNT, plaque reduction neutralization test; NT, not tested.

Main Article

TOP