TY - JOUR
T1 - West nile virus prevalence in wild birds from Mexico
AU - Barbachano-Guerrero, Arturo
AU - Vásquez-Aguilar, Antonio Acini
AU - Alonso Aguirre, A.
AU - Zavala-Norzagaray, Alan A.
AU - Gonzalez, Eduardo Carrera
AU - Terrazas, Alberto Lafón
AU - Aguilar-Faisal, José Leopoldo
N1 - Publisher Copyright:
© Wildlife Disease Association 2019.
PY - 2019/4
Y1 - 2019/4
N2 - West Nile virus (WNV) emerged in the Americas with its introduction in 1999 and now is considered endemic across the continent. In 2002, WNV was detected in Mexico, where its occurrence and mortality are considerably lower compared with the US. However, continuous national surveillance programs in Mexico are nonexistent. Birds are considered the primary hosts and primary geographic dispersers of this pathogen. A total of 200 cloacal and tracheal samples from wild migratory or resident birds were retrospectively analyzed using reverse transcription PCR to detect WNV from birds collected in Mexico from 2008 to 2009. The overall prevalence was 8% (16/200), and positive samples were from Oaxaca, Chiapas, and Tamaulipas in Ruby-throated Hummingbird (Archilo-chus colubris), Double-crested Cormorant (Phalacrocorax auritus), Ring-billed Gull (Larus delawarensis), and Mourning Dove (Zenaida macroura). Analysis of the partial sequence of the envelope gene from one of the samples from Oaxaca provided evidence that the virus belonged to the WN99 genotype. Taken together, these results demonstrated that WNV circulated in wild birds from northern and southern Mexico during the 2008–09 season, providing further information about the presence of WNV in Mexico.
AB - West Nile virus (WNV) emerged in the Americas with its introduction in 1999 and now is considered endemic across the continent. In 2002, WNV was detected in Mexico, where its occurrence and mortality are considerably lower compared with the US. However, continuous national surveillance programs in Mexico are nonexistent. Birds are considered the primary hosts and primary geographic dispersers of this pathogen. A total of 200 cloacal and tracheal samples from wild migratory or resident birds were retrospectively analyzed using reverse transcription PCR to detect WNV from birds collected in Mexico from 2008 to 2009. The overall prevalence was 8% (16/200), and positive samples were from Oaxaca, Chiapas, and Tamaulipas in Ruby-throated Hummingbird (Archilo-chus colubris), Double-crested Cormorant (Phalacrocorax auritus), Ring-billed Gull (Larus delawarensis), and Mourning Dove (Zenaida macroura). Analysis of the partial sequence of the envelope gene from one of the samples from Oaxaca provided evidence that the virus belonged to the WN99 genotype. Taken together, these results demonstrated that WNV circulated in wild birds from northern and southern Mexico during the 2008–09 season, providing further information about the presence of WNV in Mexico.
KW - Archilochus colubris
KW - Birds
KW - Larus delawarensis
KW - Mexico
KW - Phalacrocorax auritus
KW - Prevalence
KW - West Nile virus
KW - Zenaida macroura
UR - http://www.scopus.com/inward/record.url?scp=85064722556&partnerID=8YFLogxK
U2 - 10.7589/2018-03-065
DO - 10.7589/2018-03-065
M3 - Artículo
C2 - 30339087
SN - 0090-3558
VL - 55
SP - 425
EP - 431
JO - Journal of Wildlife Diseases
JF - Journal of Wildlife Diseases
IS - 2
ER -