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Volume 19, Number 11—November 2013

Dispatch

West Nile Virus, Texas, USA, 2012

Kristy O. MurrayComments to Author , Duke Ruktanonchai, Dawn Hesalroad, Eric Fonken, and Melissa S. Nolan
Author affiliations: Baylor College of Medicine, Houston, Texas, USA (K.O. Murray,, M.S. Nolan); Texas Children’s Hospital, Houston (K.O. Murray, M.S. Nolan); Texas Department of State Health Services, Austin, Texas, USA (D. Ruktanonchai, D. Hesalroad, E. Fonken)

Main Article

Table

Demographic characteristics and attack rates of all West Nile virus cases reported to the Texas (USA) Department of State Health Services during the 2012 outbreak

Characteristic All cases, no. (%), n = 1,868 Attack rate*/100,000 population WNV fever, no. (%), n = 1,024 WNV neuroinvasive disease, no. (%), n = 844 Deaths, no. (%), n = 89
Sex
M 1,028 (55.0) 8.1 519 (50.7) 509 (60.3) 56 (62.9)
F 840 (45.0) 6.5 505 (49.3) 335 (39.7) 33 (37.1)
Age, y
<18 70 (3.8) 1.0 42 (4.1) 28 (3.3) 0
18–24 71 (3.8) 2.7 42 (4.1) 29 (3.4) 0
25–44 439 (23.5) 6.2 283 (27.6) 156 (18.5) 5 (5.6)
45–64 728 (39.0) 11.7 424 (41.4) 304 (36.0) 13 (14.6)
>65 560 (30.0) 20.0 233 (22.8) 327 (38.7) 71 (79.8)
Race/ethnicity
White, non-Hispanic 1,273 (68.1) 11.1 738 (72.1) 535 (63.4) 54 (60.7)
Black 117 (6.3) 4.0 43 (4.2) 74 (8.8) 1 (1.1)
White, Hispanic 318 (17.0) 3.2 134 (13.1) 184 (21.8) 22 (24.7)
Other/unknown 160 (8.6) 11.2 109 (10.6) 51 (6.0) 12 (13.5)

*Attack rates based on 2012 population estimates from the Texas State Data Center (3).

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