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Volume 9, Number 7—July 2003

Dispatch

Serologic Evidence of West Nile Virus Infection in Horses, Yucatan State, Mexico

María A. Loroño-Pino*†, Bradley J. Blitvich*, José A. Farfán-Ale†, Fernando I. Puerto†, José M. Blanco‡, Nicole L. Marlenee*, Elsy P. Rosado-Paredes†, Julian E. García-Rejón†, Duane J. Gubler§, Charles H. Calisher*, and Barry J. Beaty*Comments to Author 
Author affiliations: *Colorado State University, Fort Collins, Colorado, USA; †Universidad Autonoma de Yucatan, Merida, Yucatan, Mexico; ‡Universidad Autonoma de Yucatan, Xmatkuil, Yucatan, Mexico; §Centers for Disease Control and Prevention, Fort Collins, Colorado, USA

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Table 1

Study sites and numbers of horses sampled per site, State of Yucatan, Mexico

Study site Global Positioning 
System location No. (%) of 
horses bled
Acanceh 20° 48' 46" N, 89° 27' 14" W 8 (3.2)
Caucel 21° 00' 53" N, 89° 42' 25" W 1 (0.4)
Hobonil 20° 00' 54" N, 89° 01' 15" W 26 (10.3)
Hunucma 21° 00' 55" N, 89° 52' 28" W 7 (2.8)
Mani 20° 23' 11" N, 89° 23' 37" W 1 (0.4)
Merida 20° 58' 04" N, 89° 37' 18" W 63 (25.0)
Molas 20° 48' 57" N, 89° 37' 55" W 5 (2.0)
Progreso 21° 17' 04" N, 89° 39' 48" W 31 (12.3)
Sierra Papacal 21° 07' 16" N, 89° 43' 41" W 14 (5.6)
Timucuy 20° 48' 34" N, 89° 30' 51" W 5 (2.0)
Tixkokob 21° 00' 08" N, 89° 23' 37" W 15 (6.0)
Tizimin 21° 08' 32" N, 88° 09' 03" W 49 (19.4)
Uman 20° 49' 38" N, 89° 41' 08" W 26 (10.3)
Xbec 21° 14' 54" N, 88° 49' 29" W 1 (0.4)
Total 252 (100)

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