| west nile virus activity--united states, september 8-14, 2004. | during september 8-14, a total of 195 cases of human west nile virus (wnv) illness were reported from 26 states (alabama, arizona, arkansas, california, colorado, florida, georgia, idaho, illinois, iowa, kansas, maryland, minnesota, missouri, nebraska, nevada, new mexico, new york, north dakota, oklahoma, oregon, pennsylvania, south dakota, tennessee, texas, and wisconsin). | 2004 | 15371969 |
| behavioral risks for west nile virus disease, northern colorado, 2003. | in 2003, residents in 2 adjacent cities in northern colorado (loveland and fort collins) had severe outbreaks of human west nile virus (wnv) disease. unexpectedly, age-adjusted neuroinvasive disease rates were higher in loveland (38.6 vs. 15.9 per 100,000), which had a more extensive mosquito control program and fewer mosquitoes. a survey was conducted to assess differences in personal protection and risk practices by each city's residents. during may and june 2004, a random-digit dial telephone ... | 2007 | 17552095 |
| spatio-temporal cluster analysis of county-based human west nile virus incidence in the continental united states. | west nile virus (wnv) is a vector-borne illness that can severely affect human health. after introduction on the east coast in 1999, the virus quickly spread and became established across the continental united states. however, there have been significant variations in levels of human wnv incidence spatially and temporally. in order to quantify these variations, we used kulldorff's spatial scan statistic and anselin's local moran's i statistic to uncover spatial clustering of human wnv incidence ... | 2009 | 19594928 |
| seasonal patterns for entomological measures of risk for exposure to culex vectors and west nile virus in relation to human disease cases in northeastern colorado. | we examined seasonal patterns for entomological measures of risk for exposure to culex vectors and west nile virus (family flaviviridae, genus flavivirus, wnv) in relation to human wnv disease cases in a five-county area of northeastern colorado during 2006-2007. studies along habitat/elevation gradients in 2006 showed that the seasonal activity period is shortened and peak numbers occur later in the summer for culex tarsalis coquillett females in foothills-montane areas >1600 m compared with pl ... | 2009 | 19960707 |
| hydrologic conditions describe west nile virus risk in colorado. | we examine the relationship between hydrologic variability and the incidence of human disease associated with west nile virus (wnv; family flaviviridae, genus flavivirus) infection (hereafter termed "human wn cases") in colorado from 2002 to 2007. we find that local hydrologic conditions, as simulated by the mosaic hydrology model, are associated with differences in human wn cases. in colorado's eastern plains, wetter spring conditions and drier summer conditions predict human wn cases. in color ... | 2010 | 20616987 |
| bird community composition linked to human west nile virus cases along the colorado front range. | in the present study, we examined whether bird community composition can predict the annual number of human west nile virus (wnv) cases on a per county basis in the colorado front range, a region that experienced high numbers of human cases during the early part of the north american epidemic. we analyzed data sets pertaining to birds and human wnv cases from multiple existing databases between the years 2002 and 2008. based on previous studies that used amplification fractions to compare the re ... | 2010 | 21125307 |