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Volume 10, Number 9—September 2004

Dispatch

Year-round West Nile Virus Activity, Gulf Coast Region, Texas and Louisiana

Robert B. Tesh*Comments to Author , Ray Parsons†, Marina Siirin*, Yvonne Randle†, Chris Sargent†, Hilda Guzman*, Taweesak Wuithiranyagool†, Stephen Higgs*, Dana L. Vanlandingham*, Adil A. Bala†, Keith Haas‡, and Brian Zerinque§
Author affiliations: *University of Texas Medical Branch, Galveston, Texas, USA; †Harris County Public Health and Environmental Services, Houston, Texas, USA; ‡Galveston County Mosquito Control District, Dickinson, Texas, USA; §Mosquito Control Contractors, Inc., New Iberia, Louisiana, USA

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Table 2

West Nile virus–species infection rates among 248 culture-positive dead birds collected in Harris County, Texas, January 2003–March 2004

Common name Scientific name Total tested No. infected (%)
Blue Jay Cyanocitta cristata 376 184 (48.9)
American Crow Corvus brachyrhynchos 23 16 (69.6)
Loggerhead Shrike Lanius ludovicianus 14 7 (50)
House Sparrow Passer domesticus 119 19 (16.0)
Northern Mockingbird Mimus polyglottus 99 8 (8.1)
Mourning Dove Zenaida macroura 278 6 (2.2)
Rock Dove Columba livia 48 1 (2.1)
Inca Dove Columbina inca 38 1 (2.6)
Great-crested Flycatcher Myiarchus crinitus 1 1 (100)
Carolina Chickadee Parus carolinensis 3 1 (33.3)
Tufted Titmouse Baeolophus bicolor 2 1 (50)
Common Grackle Quiscalus quiscula 84 3 (3.6)
Orchard Oriole Icterus spurius 3 1 (33.3)
American Goldfinch Carduelis tristis 1 1 (100)

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