Risk for disease was 4 times greater in the least forested counties

Anderson

Andreadis

Apperson

Brown

Brownstein

Burnham

Centers for Disease Control and Prevention

Childs

Diuk-Wasser

Durland Fish

Gibbs

Hayes

Heidi E. Brown

James E. Childs

Kilpatrick

Komar

Kramer

Landis

Legendre

Lichstein

Lucey

Maria A. Diuk-Wasser

Marra

Molaei

Nasci

Petersen

Roberts

Turell

Waller

Emerging Infectious Diseases

English

PubMed

Crossref

Ecologic Factors Associated with West Nile Virus Transmission, Northeastern United States

Since 1999, West Nile virus (WNV) disease has affected the northeastern United States. To describe the spatial epidemiology and identify risk factors for disease incidence, we analyzed 8 years (1999–2006) of county-based human WNV disease surveillance data. Among the 56.6 million residents in 8 northeastern states sharing primary enzootic vectors, we found 977 cases. We controlled for population density and potential bias from surveillance and spatial proximity. Analyses demonstrated significant spatial spreading from 1999 through 2004 (p2 = 0.16). A significant trend was apparent among increasingly urban counties; county quartiles with the least (0.75 cases/100,000 residents) than counties with the most (\u3e70%) forest cover. These results quantify urbanization as a risk factor for WNV disease incidence and are consistent with knowledge of vector species in this area

Brown, Heidi E

Childs, James E

Diuk-Wasser, Maria A

Fish, Durland

DigitalCommons@University of Nebraska

Ecological Factors Associated with West Nile Virus Transmission, Northeastern United States

Since 1999, West Nile virus (WNV) disease has affected the northeastern United States. To describe the spatial epidemiology and identify risk factors for disease incidence, we analyzed 8 years (1999–2006) of county-based human WNV disease surveillance data. Among the 56.6 million residents in 8 northeastern states sharing primary enzootic vectors, we found 977 cases. We controlled for population density and potential bias from surveillance and spatial proximity. Analyses demonstrated significant spatial spreading from 1999 through 2004 (p0.75 cases/100,000 residents) than counties with the most (>70%) forest cover. These results quantify urbanization as a risk factor for WNV disease incidence and are consistent with knowledge of vector species in this area

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http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2609885

Ecologic Factors Associated with West Nile Virus Transmission, Northeastern United States

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