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2007-8-28 18:25:42 |
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borne West Nile virus diseases including 10 deaths have been reported in the United States based on the reports from individual states. As of August 7, the U.S. Geological Survey has received reports of 308 human cases from Alabama, Arizona, Arkansas, California, Colorado, Georgia, Idaho, Illinois, Iowa, Kansas, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Ohio, Pennsylvania, South Dakota, Texas, Utah, Virginia, and Wyoming. Readers should know that only 20 percent of infected people experience any symptoms, meaning that the number of people who got infected with West Nile virus might have likely exceeded 2000 so far this year. We compiled the following West Nile Surveillance data from each state for interested readers. Some states are not listed because data are not available from their web sites, assuming that West Nile virus activity is negligible in their states. Alabama (3/1): As of July 31, Alabama Department of Public Health has reported three human cases of infections with mosquito-borne West Nile viruses. Two residents suffered West Nile encephalitis leading to one death. A third person suffered West Nile fever. The infected persons resided in Chambers, Marshall and Mobile counties. http://www.adph.org/news/assets/070806.pdf Arizona (17/0): As of July 31, 2007, the State Department of Health Services has reported 17 human cases of West Nile virus, 16 from Maricopa County and one from Pinal County and 84 positive mosquito samples out of 49187 tested samples from Maricopa County (58), Yuma County (15), Pinal County (8), and Yavapai County (1). Last year, 150 people including ten deaths suffered from West Nile virus and 226 mosquito samples tested positive for the virus. http://www.azdhs.gov/phs/oids/westnile/wnv_update07.htm Arkansas (5/0): It seems this state does not update the West Nile activity as often as some states like California. Earlier we reported that five people were infected with West Nile virus. But the federal West Nile web site shows that Arkansas has so far reported 2 human cases and only one positive mosquito sample. http://www.healthyarkansas.com/ California (86/5): As of Friday August 10, 2007, California has reported 86 human cases of West Nile virus from 18 counties. 22 human cases were reported last week. The virus has thus far killed five residents from Colusa County (1), Kern County (2), Kings County (1) and San Joaquin County (1). In comparison, only 38 people were found with West Nile thus far last year. This year, West Nile virus has been found in 524 mosquito samples compared to 443 samples thus far last year. Governor Schwarzenegger has declared state of emergency in the counties which has been hit hardest by the virus and announced additional funding August 10, bringing the total to more than $1.3 million to fight West Nile virus. http://www.westnile.ca.gov/ Colorado (79/2): West Nile virus is very active in the state of Colorado this year. As of Friday August 10, the state has reported 79 human cases of West Nile virus from Adams (3), Boulder (20), Broomfield (3), Cheyenne (2), Denver (2), Douglas (1), EI Paso (1), Fremont (2), Huerfano (1), Jefferson (2), Larimer (20), Logan (1), Mesa (1), Otero (1), Prowers (2), Pueblo (2), Washington (1) and Weld (14). Two people in Denver County have died from the virus. 309 mosquito samples out of 4740 tested samples from 21 counties tested positive for West Nile virus. The positive counties include Adams (30), Alamosa (2), Arapahoe (5), Boulder (31), Broomfield (2), Delta (4), Denver (6), El Paso (6), Fremont (2), Garfield (1), Gunnison (2), Jefferson (2), Larimer (114), Las Animas (1), Logan (17), Mesa (2), Morgan (2), Otero (14), Prowers (9), Pueblo (10), and Weld (47), according to Colorado Department of Public Health and Environment. In 2003, this state witnessed more than 2000 human cases of West Nile virus. http://www.cdphe.state.co.us/dc/zoonosis/wnv/ Georgia (1/0): In 2007, Georgia has reported one case of West Nile virus encephalitis from Johnson County, but no fatality. The prevalence of West Nile virus in mosquitoes is not clear. http://health.state.ga.us/epi/vbd/surveillance.asp Idaho (17/0): As of August 10, West Nile virus has reportedly infected 17 people from 11 counties including Ada County (4), Bingham County (1), Cassia County (1), Custer County (1), Elmore County (1), Gem County (1), Lemhi County (1), Owyhee County (1), Payette County (3), Twin Falls County (1), and Washington County (2), according to Idaho Department of Health and Welfare. No human death was found associated with West Nile virus. Counties where West Nile virus has been found in mosquitoes include Ada, Adams, Bannock, Bingham, Canyon, Elmore, Gem, Owyhee, Payette, Power, Twin falls, Valley, and Washington County. Last year, the state reported 996 human cases of West Nile virus. http://www.healthandwelfare.idaho.gov/ Illinois (8/0): The Illinois Department of Public Health has reported 8 human cases of West Nile from Cook County (3), Dupage County (1), Kane (1), Madison County (1), Ogle County (1), and Tazewell County (1). 314 pools of mosquitoes that tested positive for the virus were reported in Cook County (240), Dupage County (64), Lake County (2), Lee County (1), Macoupin County (1), St. Clair County (1), Saline County (10), Sangamon County (1), and Tazewell County (3). No human death has been associated with West Nile virus so far this year. Last year 215 residents suffered from the virus, mostly from Cook County (86), Dupage County (43), Will County (18) and Lake County (11). http://www.idph.state.il.us/envhealth/wnvsurveillance07.htm Iowa (2/0): As of August 8, two residents, one from Woodbury County and the other from Story County and two mosquito pools collected from Woodbury County (1) and Pottawattamie County (1) have been found with West Nile virus, according to the Iowa Department of Public Health. No death was reported from West Nile virus. Last year, 37 human cases and 15 positive mosquito pools were reported. http://www.idph.state.ia.us/adper/wnv_surveillance.asp Minnesota (10/0): The Minnesota Department of Health has reported 13 human cases of West Nile virus from 12 counties including Kittson (1), Polk (1), Saint Louis (1), Norman (1), Clay (1), Becker (1), Wadena (1), Otter Tail (1), Mille Lacs (1), Big Stone (1), Kandiyohi (1), and Faribault counties (1). The West Nile virus has been detected in 20 samples of mosquitoes from 10 counties including Wilkin (1), Traverse (5), Wright (1), Anoka (2), Hennepin (1), Dakota (1), Scott (2), and Murray Counties (3). In 2006, 65 human cases including 3 deaths from 39 counties and 119 positive mosquito pools from 12 counties were reported in the state. http://www.health.state.mn.us Mississippi (14/1): As of August 10, the Mississippi State Department of Health has reported 14 human cases of West Nile virus from Adams County (1), Forrest County (1), Jones County (1), Lawrence County (1), Madison County (2), Scott County (3), Smith County (1) and Stone County (1), and Walthall County (1). One person has died from the virus so far this year. But only five mosquito pools from three counties including Forrest County (3), Hinds County (1) and Jackson County (1) were found positive for the West Nile virus. Last year, 184 people in the state reportedly suffered from West Nile virus. http://www.msdh.state.ms.us/msdhsite/index.cfm/14,4625,93,63,html Missouri (2/0): As of August 7, the Division of Community and Public Health has reported two human cases of West Nile virus, one from Johnson County and the other from St Louis County. No fatality has been associated with the virus. 69 mosquito pools from 8 counties/city including Boone county (2), Clay County (3), Cole County (1), Jefferson County (2), Lewis County (1), Nodaway County (1), St Louis City (1) and St Louis County (69) have tested positive for West Nile virus. http://www.dhss.mo.gov/WestNileVirus/MosqPoolsPositive2007.htm Montana (9/0): As of August 10, the Department of Public Health and Human Services has reported 9 human cases of West Nile virus from Big Horn County (1), Roosevelt County (3), Sheridan County (1), Valley County (2) and Yellowstone County (1). No human death was reported from West Nile. 48 mosquito pools from nine counties have tested positive for the virus. This state reported 34 human cases of West Nile virus last year. http://www.dphhs.mt.gov/PHSD/epidemiology/commun-disease-epi-index.shtml Nebraska (16/0): As of August 7, the Nebraska Department of Health and Human Services has reported 16 human cases of West Nile virus from 13 counties including Knox County (1), Garden county (1), Boone County (1), Platte county (1), Lincoln county (1), Buffalo (1), Hall County (3), Seward County (1), Lancaster County (1), Adams (2), Harlan County (1) and Thayer County (1). No human death associated with West Nile has been reported so far this year. 51 pools of mosquitoes have reported positive for the virus. Last year, 264 residents were confirmed to have West Nile virus and 2 died from the virus. http://www.hhs.state.ne.us/wnv/ Nevada (2/0): As of August 10, the Nevada State Health Division has reported two human cases of West Nile virus from Clark County (1) and Pershing County (1), compared to eight up to this day of last year. Apparently there has been no human death associated with West Nile virus. It’s not clear how prevalent the West Nile virus is in mosquitoes in the state. http://health.nv.gov/ New Mexico (6/0): As of August 10, the New Mexico Department of Health has reported six human cases of West Nile Virus from Bernalillo, Chaves, Dona Ana, Roosevelt and San Juan counties. Four people suffered meningitis or encephalitis, the most serious complications from West Nile while the other latest two cases suffered West Nile fever and were not hospitalized. Positive mosquito samples were found in Bernalillo, Cibola, Dona Ana, Luna and San Juan counties. In 2006, eight people suffered from West Nile virus and one died from the illness. http://www.health.state.nm.us/epi/wnv.html North Dakota (54/0): As of August 7, the North Dakota Department of Health has reported 54 human cases of West Nile from 22 counties, but no positive pools of mosquitoes out of 14 tested samples. Burleigh County was hit hardest by the virus, sickening 11 people there. No one has died from West Nile illness so far this year. In 2005, 86 people were found with West Nile from 30 counties, but no death was reported. http://www.ndhealth.gov/wnv/ Ohio (1/0): As of August 10, The Ohio Department of Health has reported one human case of West Nile virus from Butler County and 26 pools of positive mosquitoes from ten counties. No human death was reported. In 2006, 48 human cases including four fatalities 909 positive pools of mosquitoes out of 15,300 tested samples were reported in the state. http://www.odh.ohio.gov/ Okalahoma (3/0): As of August 9, the Okalahoma State Department of Health has reported three human cases of West Nile virus from Woodward County (1), Oklahoma County (1) and Ottawa County (1) and 9 positive mosquito samples from Payne County (3), Tulsa County (3) and Pittsburg County (3). In 2006, the state reported 48 human cases, 6 human deaths from West Nile virus, and 94 positive mosquito samples. http://www.health.ok.gov/program/cdd/wnv/SurvData.htm Pennsylvania (1/0): The Pennsylvania West Nile Surveillance program has reported one human case of West Nile from Clearfield County, a 56-year-old man, and 33 positive samples of mosquitoes from ten counties. In 2006, nine human cases including two deaths were reportedly associated with West Nile virus. http://www.westnile.state.pa.us/surv.htm South Carolina (1/0): As of July 31, The South Carolina Department of Health and Environmental Control has reported one human case of West Nile virus from Aiken County and 12 positive mosquito samples from Aiken County (5), Charleston County (6), and Clarendon County (1). Last year, one human case of West Nile virus and 31 positive mosquito samples were reported in the state. http://www.scdhec.net/ South Dakota (46/0): As August 7, SD Department of health has reported 46 human cases of West Nile virus disease including one death and 53 positive mosquito pools. http://doh.sd.gov/ http://doh.sd.gov/WestNile/ Tennessee (0/0): As of August 10, Tennessee Department of Health has reported no human cases of West Nile and 55 positive samples of mosquitoes. In 2005, 18 human cases of West Nile virus and 574 positive mosquito pools were reported in the state. http://health.state.tn.us/CEDS/WNV/wnvhome.asp Texas (7/0): As of August 10, Texas Department of State health Services has reported 7 human cases of West Nile virus from 7 counties and 72 positive pools of mosquitoes from 13 counties compared to 333 human cases including 33 fatalities in 2006. http://www.dshs.state.tx.us/idcu/disease/arboviral/westNile/ Utah (5/0): As of August 10, Utah Department of Health has reported 5 human cases of West Nile virus from Cache County (1), Davis County (1), Grand County (1), Salt Lake County (1), and Uintah County (1) and 51 positive pools of mosquitoes from 7 counties, mostly in Salt Lake (30). http://health.utah.gov/epi/diseases/wnv/ Virginia (1/0): As of August 6, this state has reported 1 human case of West Nile virus from Fairfax County and 62 positive pools of mosquitoes. http://www.vdh.virginia.gov/ Wisconsin (1/0): As of August 8, Wisconsin Department of health and Family Services has reported 1 human case of West Nile virus, but no positive samples of mosquitoes in the state. http://dhfs.wisconsin.gov/communicable/westnilevirus/ Wyoming (11/1): Wyoming Department of Health has reported 11 human cases of West Nile virus including one death from Campbell County (2), Crook County (2), Fremont County (5), Goshen County (1, death), and Natrona County (1). In 2006, 65 human cases including two deaths were reported in the state. The prevalence of West Nile virus in mosquitoes is unknown. http://www.badskeeter.org/detections.html |
