Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 17, Number 12—December 2011

West Nile Virus Infection of Birds, Mexico

Sergio Guerrero-Sánchez1, Sandra Cuevas-Romero, Nicole M. Nemeth, Maríaresa Jesús Trujillo-Olivera, Gabriella Worwa, Alan Dupuis, Aaron C. Brault, Laura D. Kramer, Nicholas Komar, and José Guillermo Estrada-FrancoComments to Author 
Author affiliations: Zoológico Miguel Alvarez del Toro, Tuxtla Gutiérrez, Mexico (S. Guerrero-Sánchez); Instituto Nacional de Investigaciones Forestales, Mexico City, Mexico (S. Cuevas-Romero); Centers for Disease Control and Prevention, Fort Collins, Colorado, USA (N.M. Nemeth, A.C. Brault, N. Komar); Universidad Autónoma de Chiapas, Tuxtla Gutiérrez (M.T. Jesus Trujillo-Olivera); University of California, Davis, California, USA (G. Worwa); New York State Department of Health, Slingerlands, New York, USA (A Dupuis, L.D. Kramer); University of Texas Medical Branch, Galveston, Texas, USA (J.G. Estrada-Franco)

Main Article

Table 2

Virus shedding by 2 bird species experimentally inoculated with West Nile virus from Mexico*

Species No. WNV strain Oral shedding
Cloacal shedding
Peak titer, log PFU/swab† When detected, dpi Proportion positive Peak titer, log PFU/swab† When detected, dpi Proportion positive
House sparrow 6 Tecate 5.0 2–7 1.00 1.4 2–3 0.83
6 Tabasco 7.2 2–6 0.67 4.9 4 NR
Great-tailed grackle 4 Tecate 3.7 2–7 0.75 2.4 3 0.75
4 Tabasco 6.2 5–6 0.75 4.6 3–7 NR

*dpi, days postinoculation; NR, not reported because of insufficient sample collection.
†Peak titers and end point of detection might be underestimated because of intermittent sample collection.

Main Article

1Current affiliation: El Colegio de la Frontera Sur, Campeche, Mexico.

Page created: November 30, 2011
Page updated: November 30, 2011
Page reviewed: November 30, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.