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Volume 21, Number 4—April 2015
Dispatch

West Nile Virus Infection Incidence Based on Donated Blood Samples and Neuroinvasive Disease Reports, Northern Texas, USA, 2012

Diana T. CervantesComments to Author , Shande Chen, Laurie J. Sutor, Shelley Stonecipher, Nicolette Janoski, David J. Wright, and Edward L. Murphy
Author affiliations: Texas Department of State Health Services, Arlington, Texas, USA (D.T. Cervantes, S. Stonecipher); The University of North Texas Health Science Center, Fort Worth, Texas, USA (S. Chen); Carter BloodCare, Bedford, Texas, USA (L.J. Sutor); Tarrant County Public Health, Fort Worth (N. Janoski); Westat, Rockville, Maryland, USA (D. Wright); Blood Systems Research Institute, San Francisco, California, USA (M.P. Busch)

Main Article

Table 2

West Nile neuroinvasive disease case-based model derived West Nile Virus infection estimates, northern Texas, 2012

Sex and age groups† Total population No. WNND case-patients (A) Inverse ratio (B) Estimated no. infections‡ (95% CI) % Population infected§ (95% CI)
M 2,096,657 203 220 44,660 (33,841–56,977) 2.13 (1.61–2.72)
16–24 y 361,910 11 719 7,909 (2,357–16,723) 2.19 (0.65–4.62)
25–44 y 858,076 41 356 14,596 (7,260–24,468) 1.70 (0.85–2.85)
45–64 y 667,136 75 248 18,600 (11,210–27,851) 2.79 (1.68–4.17)
≥65 y
209,535
75
50
3,750 (1,953–6,129)
1.79 (0.93–2.92)
F 2,211,115 146 291 42,486 (28,943–58,621) 1.92 (1.31–2.65)
16–24 y 350,330 5 1,231 6,155 (626–17,397) 1.76 (0.18–4.97)
25–44 y 879,401 36 330 11,880 (5,306–21,068) 1.35 (0.60–2.40)
45–64 y 699,480 52 387 20,124 (9,949–33,847) 2.88 (1.42–4.84)
≥65 y
281,904
54
61
3,294 (1,017–6,873)
1.17 (0.36–2.44)
Total 4,307,772 349 244 85,156 (68,302–103,866) 1.98 (1.59–2.41)

*WNND, West Nile neuroinvasive disease.
†Age and sex information presented for confirmed and probable case-patients >16 y of age (n = 349).
‡A × B.
§No. estimated infections/population.

Main Article

Page created: March 17, 2015
Page updated: March 17, 2015
Page reviewed: March 17, 2015
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