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rabies surveillance in the united states during 1989.in 1989, 4,808 cases of rabies in animals other than human beings were reported to the centers for disease control, 1.8% more (4,724 to 4,808) than in 1988. eighty-eight percent (4,224/4,808) of those affected were wild animals and 12% (584/4,808) were domestic animals. cases were reported from 49 states, the district of columbia, and puerto rico; hawaii remained rabies-free. skunks (1,657) continued to be the most commonly reported rabid wild animal. for the second consecutive year, more cats ( ...19902276949
arbovirus studies in the ohio-mississippi basin, 1964-1967. v. trivittatus and western equine encephalomyelitis viruses. 19695817893
mosquito and arbovirus activity during 1997-2002 in a wetland in northeastern mississippi.the species composition and population dynamics of adult mosquitoes in a wetland near iuka, ms, were analyzed over a 6-yr period (1997-2002) and reverse transcription-polymerase chain reaction (pcr) detection rates of arboviruses determined during five of those years. blood meals of three likely vector species were identified using a pcr-based method that allows identification of the host to species. culex erraticus (dyar & knab) composed 51.9% of the population during the 6-yr period with 295 f ...200415185956
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).200415318160
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).200415385920
west nile virus activity--united states, september 22-28, 2004.during september 22-28, a total of 180 cases of human west nile virus (wnv) illness were reported in the district of columbia (dc) and 24 states (alabama, arizona, california, georgia, illinois, iowa, kansas, kentucky, louisiana, maryland, michigan, minnesota, mississippi, missouri, montana, nebraska, nevada, new mexico, ohio, pennsylvania, texas, utah, wisconsin, and wyoming).200415457147
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).200415499683
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).200415514584
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 ...200616915222
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 ...201020592686
the culex pipiens complex in the mississippi river basin: identification, distribution, and bloodmeal hosts.members of the culex pipiens complex are the primary vectors of st. louis encephalitis virus and west nile virus in the mississippi river basin (mrb). the cx. pipiens complex in the mrb is composed of 4 taxa: cx. p. pipiens form pipiens, cx. p. quinquefasciatus, hybrids between cx. p. pipiens f. pipiens and cx. p. quinquefasciatus, and cx. p. pipiens form molestus. three studies on bloodmeal hosts with large sample sizes have been conducted on members of the cx. pipiens complex in the mrb includ ...201223401948
dry weather induces outbreaks of human west nile virus infections.since its first occurrence in the new york city area during 1999, west nile virus (wnv) has spread rapidly across north america and has become a major public health concern in north america. by 2002, wnv was reported in 40 states and the district of columbia with 4,156 human and 14,539 equine cases of infection. mississippi had the highest human incidence rate of wnv during the 2002 epidemic in the united states. epidemics of wnv can impose enormous impacts on local economies. therefore, it is a ...201020181272
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).200415329654
risk factors associated with the presence of sarcocystis neurona sporocysts in opossums (didelphis virginiana).sarcocystis neurona is the most important cause of equine protozoal myeloencephalitis (epm) in horse in the americas. the only known definitive host for this parasite in the united states is the opossum (didelphis virginiana); however, despite the importance of the disease, the epidemiology of the parasite in the definitive host is poorly understood. to begin addressing these data gaps, potential risk factors were evaluated for their association with the presence of sporocysts of s. neurona in o ...200111777597
prevalence of sarcocystis neurona sporocysts in opossums (didelphis virginiana) from rural mississippi.sarcocystis species sporocysts were found in intestinal scrapings from 24 of 72 opossums (didelphis virginiana) from rural mississippi. the number of sporocysts in each opossum varied from a few ( < 100000) to 187 million. sporocysts from 24 opossums were bioassayed for sarcocystis neurona infections by feeding to gamma-interferon knockout (ko) mice. s. neurona was detected in the brains of ko mice fed sporocysts from 19 opossums by immunohistochemical staining with anti-s. neurona specific poly ...200111223208
virus characterization and sequence of the fusion protein gene cleavage site of recent newcastle disease virus field isolates from the southeastern united states and puerto rico.nine newcastle disease virus (ndv) isolates obtained from puerto rico, georgia, alabama, mississippi, and texas were analyzed for in vivo pathogenicity, biological properties (hemagglutination of mammalian erythrocytes), and for sequence variation at the amino acid and sense rna level of the fusion protein cleavage site. intracerebral pathogenicity index values ranged from 0 to 0.3 and the intravenous pathogenicity index obtained for all isolates was 0. four isolates hemagglutinated bovine eryth ...19968790890
identification of two south american strains of eastern equine encephalomyelitis virus from migrant birds captured on the mississippi delta. 19715568603
distribution of equine infectious anemia in equids in southeastern united states.state veterinarians in 11 southeastern states completed a questionnaire designed to determine the proportion of equids in the region that were seropositive for equine infectious anemia (eia). cases of eia were diagnosed in each of the states surveyed. distinct geographic clusters of cases were apparent in tennessee and kentucky adjacent to the mississippi river, in the piedmont of north carolina at the virginia border, in north central georgia, and throughout the florida peninsula. it is suggest ...19902173692
trajectory analysis of winds and eastern equine encephalitis in usa, 1980-5.backward trajectories of winds were determined to identify possible sources of eastern equine encephalitis virus associated with isolation of virus from mosquitoes or birds or outbreaks in horses between 1980 and 1985 in maryland, new jersey, new york and michigan, usa. the results of the trajectory analyses suggested that eastern equine encephalitis virus could have been carried by infected mosquitoes on surface winds at temperatures 13 degrees c or higher from north carolina north-eastwards al ...19901969804
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).200415306758
weekly update: west nile virus activity--united states, july 17-23, 2002.this report summarizes west nile virus (wnv) surveillance data reported to cdc through arbonet and verified by states and other jurisdictions as of july 23, 2002. during the reporting week of july 17-23, nine human cases of wnv were reported from two states (louisiana and mississippi). during the same period, wnv infections were reported in 202 dead crows, 48 other dead birds, 13 horses, and 69 mosquito pools.200212186223
parastrongylus (=angiostrongylus) cantonensis now endemic in louisiana wildlife.parastrongylus (=angiostrongylus) cantonensis, a lung worm of rats, was first reported in the united states in 1987, with a probable introduction by infected rats from ships docking in new orleans, louisiana, during the mid-1980s. since then, it has been reported in nonhuman primates and a boy from new orleans, and in a horse from picayune, mississippi, a distance of 87 km from new orleans. parastrongylus cantonensis infection is herein reported in a lemur (varencia variegata rubra) from new ibe ...200212435151
dermatophilosis (cutaneous streptothricosis) in cattle and horses in mississippi. 19695192658
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