| west nile virus activity--united states, june 9-15, 2004. | as of june 15, a total of 14 human cases of west nile virus (wnv) illness had been reported to cdc through arbonet from five states. ten cases were reported from arizona, and one case each from california, new mexico, south dakota, and wyoming (figure). ten (71%) of the cases occurred in males; the median age of patients was 53 years (range: 9-69 years), and dates of illness onset ranged from may 8 to june 1. | 2004 | 15201846 |
| west nile virus activity--united states, june 16-22, 2004. | as of june 22, 2004, seven states reported a total of 32 human cases of west nile virus (wnv) illness to cdc through arbonet. twenty cases were reported from arizona, six cases from california, two cases from florida, and one case each from nebraska, new mexico, south dakota, and wyoming. twenty-three (72%) of the cases occurred in males; the median age of patients was 52 years (range: 9-78 years), and dates of illness onset ranged from may 8 to june 7. sixteen (50%) of the patients had neuroinv ... | 2004 | 15215743 |
| west nile virus activity--united states, june 23-29, 2004. | as of june 29, eight states had reported a total of 57 human cases of west nile virus (wnv) illness to cdc through arbonet in 2004. a total of 38 cases had been reported from arizona, 10 from california, three from new mexico, two from florida, and one each from michigan, nebraska, south dakota, and wyoming. thirty-six (64%) of the cases occurred in males; the median age of patients was 53 years (range: 9-84 years), and dates of illness onset ranged from april 23 to june 15. of the 57 cases, one ... | 2004 | 15229416 |
| west nile virus infection in western south dakota: clinical findings and future diagnostic considerations for cost savings. | | 2004 | 15253476 |
| west nile virus activity--united states, july 14-20, 2004. | during the week of july 14-20, a total of 74 cases of human west nile virus (wnv) illness were reported from seven states (arizona, california, florida, new mexico, new york, south dakota, and texas). | 2004 | 15269701 |
| west nile virus activity--united states, july 21-27, 2004. | during july 21-27, a total of 83 cases of human west nile virus (wnv) illness were reported from 13 states (alabama, arizona, arkansas, california, colorado, florida, illinois, iowa, missouri, new mexico, ohio, pennsylvania, and south dakota). | 2004 | 15282450 |
| west nile virus activity--united states, july 28-august 3, 2004. | during july 28-august 3, a total of 141 cases of human west nile virus (wnv) illness were reported from 11 states (alabama, arizona, california, colorado, florida, illinois, nevada, new york, north dakota, south dakota, and texas). during 2004, a total of 20 states have reported a total of 406 cases of human wnv illness to cdc through arbonet. of these, 247 (61%) were reported from arizona. a total of 226 (57%) of the 406 cases occurred in males; the median age of patients was 51 years (range: 1 ... | 2004 | 15295314 |
| west nile virus activity--united states, august 4-10, 2004. | during august 4-10, a total of 89 cases of human west nile virus (wnv) illness were reported from 14 states (alabama, arizona, california, florida, illinois, kentucky, louisiana, minnesota, mississippi, missouri, new mexico, north dakota, south dakota, and wyoming). | 2004 | 15306758 |
| west nile virus activity--united states, august 11-17, 2004. | during august 11-17, a total of 194 cases of human west nile virus (wnv) illness were reported from 17 states (alabama, arizona, california, colorado, florida, illinois, louisiana, maryland, minnesota, mississippi, missouri, new mexico, ohio, south dakota, texas, utah, and virginia). | 2004 | 15318160 |
| west nile virus activity--united states, august 18-24, 2004. | during august 18-24, a total of 154 cases of human west nile virus (wnv) illness were reported from 18 states (alabama, arizona, california, colorado, connecticut, florida, georgia, illinois, kentucky, minnesota, mississippi, missouri, nevada, new mexico, north carolina, south dakota, tennessee, and wisconsin). | 2004 | 15329654 |
| 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 |
| wegner health science information center information update, august 2004. west nile virus. | | 2004 | 15379151 |
| west nile virus activity--united states, september 15-21, 2004. | during september 15-21, a total of 218 cases of human west nile virus (wnv) illness were reported from 21 states (arizona, california, florida, illinois, indiana, kansas, maryland, michigan, minnesota, mississippi, missouri, nebraska, nevada, new mexico, north dakota, oklahoma, south dakota, texas, utah, wisconsin, and wyoming). | 2004 | 15385920 |
| west nile virus activity--united states, september 29-october 5, 2004. | during september 29-october 5, a total of 81 cases of human west nile virus (wnv) illness were reported from 18 states (alabama, arizona, arkansas, california, florida, georgia, illinois, iowa, kansas, kentucky, minnesota, missouri, ohio, oklahoma, pennsylvania, south dakota, texas, and virginia). | 2004 | 15470326 |
| west nile virus activity--united states, october 13-19, 2004. | during october 13-19, a total of 200 cases of human west nile virus (wnv) illness were reported from 20 states (arizona, arkansas, california, colorado, illinois, indiana, iowa, kansas, maryland, michigan, mississippi, missouri, nevada, new mexico, north carolina, oklahoma, pennsylvania, south dakota, wisconsin, and wyoming). | 2004 | 15499683 |
| west nile virus activity--united states, october 20-26, 2004. | during october 20-26, a total of 80 cases of human west nile virus (wnv) illness were reported from 16 states (arizona, california, florida, iowa, kentucky, louisiana, michigan, mississippi, missouri, montana, nebraska, new york, ohio, south dakota, texas, and utah). | 2004 | 15514584 |
| the 2003 west nile virus united states epidemic: the america's blood centers experience. | a detailed assessment of west nile virus (wnv) yield is needed to evaluate the effectiveness of the wnv nucleic acid amplification technology (nat) screening implemented in 2003. | 2005 | 15819665 |
| west nile virus activity--united states, january 1-august 15, 2006. | this report summarizes west nile virus (wnv) surveillance data reported to cdc through arbonet as of 3 a.m. mountain daylight time, august 15, 2006. a total of 26 states had reported 388 cases of human wnv illness to cdc. a total of 214 (56%) cases for which such data were available occurred in males; median age of patients was 49 years (range: 2-91 years). dates of illness onset ranged from january 6 to august 10; a total of 13 cases were fatal. a total of 68 presumptive west nile viremic blood ... | 2006 | 16915222 |
| west nile virus neuroinvasive disease incidence in the united states, 2002-2006. | as the geographic range of reported human west nile virus (wnv) disease has expanded across the united states, seasonal transmission and outbreaks have persisted over several years in many areas of the country. west nile virus neuroinvasive disease (wnnd) case reports from 2002 to 2006 were reviewed to determine which areas of the country have the highest reported cumulative incidence and whether those areas have had consistently high annual incidence. during the 5-year period examined, 9632 cas ... | 2008 | 18237264 |
| ecological niche of the 2003 west nile virus epidemic in the northern great plains of the united states. | the incidence of west nile virus (wnv) has remained high in the northern great plains compared to the rest of the united states. however, the reasons for the sustained high risk of wnv transmission in this region have not been determined. to assess the environmental drivers of wnv in the northern great plains, we analyzed the county-level spatial pattern of human cases during the 2003 epidemic across a seven-state region. | 2008 | 19057643 |
| geographic variability in geocoding success for west nile virus cases in south dakota. | geocoding, the process of assigning each case a set of coordinates that closely approximates its true location, is an important component of spatial epidemiological studies. the failure to accurately geocode cases adversely affects the validity and strength of conclusions drawn from the analysis. we investigated whether there were differences among geographic locations and demographic classes in the ability to successfully geocode west nile virus (wnv) cases in south dakota. we successfully geoc ... | 2009 | 19577505 |
| 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 |
| west nile virus activity - united states, 2009. | west nile virus (wnv) was first detected in the western hemisphere in 1999 in new york city and has since caused seasonal epidemics of febrile illness and neurologic disease across the united states, where it is now the leading cause of arboviral encephalitis. this report updates a previous report and summarizes wnv activity in the united states reported to cdc in 2009. a total of 38 states and the district of columbia (dc) reported 720 cases of wnv disease. of these, 33 states and dc reported 3 ... | 2010 | 20592686 |
| weather and land cover influences on mosquito populations in sioux falls, south dakota. | this study compared the spatial and temporal patterns of culex tarsalis coquillett and aedes vexans meigen populations and examined their relationships with land cover types and climatic variability in sioux falls, sd. between 24 and 30 cdc co2-baited light traps were set annually in sioux falls from may to september 2005-2008. land cover data were acquired from the 2001 national land cover dataset and the percentages of selected land cover types were calculated within a 600-m buffer zone around ... | 2011 | 21661329 |
| spatio-temporal epidemiology of human west nile virus disease in south dakota. | despite a cold temperate climate and low human population density, the northern great plains has become a persistent hot spot for human west nile virus (wnv) disease in north america. understanding the spatial and temporal patterns of wnv can provide insights into the epidemiological and ecological factors that influence disease emergence and persistence. we analyzed the 1,962 cases of human wnv disease that occurred in south dakota from 2002-2012 to identify the geographic distribution, seasona ... | 2013 | 24173141 |
| landscape-level spatial patterns of west nile virus risk in the northern great plains. | understanding the landscape-level determinants of west nile virus (wnv) can aid in mapping high-risk areas and enhance disease control and prevention efforts. this study analyzed the spatial patterns of human wnv cases in three areas in south dakota during 2003-2007 and investigated the influences of land cover, hydrology, soils, irrigation, and elevation by using case-control models. land cover, hydrology, soils, and elevation all influenced wnv risk, although the main drivers were different in ... | 0 | 22492161 |
| west nile review: 15 years of human disease in south dakota, 2002-2016. | during the past 15 years, 2002-2016, west nile virus (wnv) has emerged in south dakota resulting in 509 neuroinvasive disease (nid) cases, 745 hospitalizations and 38 deaths. culex tarsalis is the state's primary mosquito vector. south dakota's average annual incidence of wnv-nid and death rate are the highest of any state in the u.s. wnv cases have been reported from all counties in the state. all age groups have been infected with cases peaking in the 40-44 year age group, but deaths peaking i ... | 2017 | 28813740 |