title: Orthobunyaviruses, a common cause of infection of livestock in the Yucatan peninsula of Mexico.
abstract: To determine the seroprevalence of selected orthobunyaviruses in livestock in the Yucatan Peninsula of Mexico, a serologic investigation was performed using serum samples from 256 domestic animals (182 horses, 31 sheep, 1 dog, 37 chickens, and 5 turkeys). All serum samples were examined by plaque reduction neutralization test using Cache Valley virus (CVV), Cholul virus (CHLV), South River virus (SOURV), Kairi virus, Maguari virus, and Wyeomyia virus. Of the 182 horses, 60 (33.0%) were seropositive for CHLV, 48 (26.4%) were seropositive for CVV, 1 (0.5%) was seropositive for SOURV, 60 (33.0%) had antibodies to an undetermined orthobunyavirus, and 13 (7.1%) were negative for orthobunyavirus-specific antibody. Of the 31 sheep, 6 (19.3%) were seropositive for CHLV, 3 (9.7%) were seropositive for CVV, 4 (12.9%) were seropositive for SOURV, 16 (51.6%) had antibodies to an undetermined orthobunyavirus, and 2 (6.5%) were negative for orthobunyavirus-specific antibody. The single dog was seropositive for SOURV. Four (11%) chickens had antibodies to an undetermined orthobunyavirus, and 1 (20%) turkey was seropositive for CHLV. These data indicate that orthobunyaviruses commonly infect livestock in the Yucatan Peninsula.
authors.affiliation: Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, USA. blitvich@iastate.edu
authors.forename: Bradley J
authors.initials: BJ
authors.lastname: Blitvich
authors.forename: Rungrat
authors.initials: R
authors.lastname: Saiyasombat
authors.forename: Amelia
authors.initials: A
authors.lastname: Travassos da Rosa
authors.forename: Robert B
authors.initials: RB
authors.lastname: Tesh
authors.forename: Charles H
authors.initials: CH
authors.lastname: Calisher
authors.forename: Julian E
authors.initials: JE
authors.lastname: Garcia-Rejon
authors.forename: José A
authors.initials: JA
authors.lastname: Farfán-Ale
authors.forename: Rubén E
authors.initials: RE
authors.lastname: Loroño
authors.forename: Arturo
authors.initials: A
authors.lastname: Bates
authors.forename: Maria A
authors.initials: MA
authors.lastname: Loroño-Pino
mesh_terms: D000818:Animals; D000829:Animals, Domestic; D002044:Bunyaviridae Infections / Q000453:epidemiology / Q000662:veterinary* / Q000821:virology; D008800:Mexico / Q000453:epidemiology; D016851:Orthobunyavirus / Q000302:isolation & purification*; D016036:Seroepidemiologic Studies