Publications

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pelodera strongyloides dermatitis in a horse in iowa. 19761049168
arboviruses isolated from mosquitoes collected in southeastern iowa in 1966. 19714398432
california encephalitis studies in iowa during 1969, 1970 and 1971. 19734735659
a comparison of seasonal and geographic distribution of western encephalitis in man and horses in iowa 1960-1963. 19666006001
chronic selenosis in horses fed locally produced alfalfa hay.chronic selenosis (alkali disease) was diagnosed in horses of western iowa, a region associated with marginal to adequate soil selenium. two locally produced alfalfa hays (medicago sativa l) were identified as the primary source. difficulty in selecting diagnostic specimens to evaluate potential chronic selenosis cases is complicated by the wide range of tissue concentrations reported in previous cases, conflicting correlation of sample selenium concentrations in the literature, and different re ...19938440631
serologic survey of toxoplasmosis in iowa domestic animals. 196414114825
west nile virus activity united states, july 7-13, 2004.during the week of july 7-13, a total of 30 human west nile virus illness cases were reported from four states (arizona, california, colorado, and iowa). during 2004, a total of 10 states have reported a total of 108 cases of human west nile virus (wnv) illness to cdc through arbonet. of these, 66 (61%) were reported from arizona. sixty-one (58%) of the 108 cases occurred in males; median age of patients was 52 years (range: 1-84 years); dates of illness onset ranged from april 23 to july 5; and ...200415254454
west nile virus activity--united states, october 27-november 2, 2004.during october 27-november 2, a total of 10 cases of human west nile virus (wnv) illness were reported from eight states (arizona, georgia, iowa, michigan, new mexico, ohio, oklahoma, and pennsylvania).200415525902
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
arbovirus encephalitis surveillance in iowa. 19704393690
clinicopathology of equine rhinopneumonitis abortion in central iowa. 19744360757
subtype analysis of cryptosporidium specimens from sporadic cases in colorado, idaho, new mexico, and iowa in 2007: widespread occurrence of one cryptosporidium hominis subtype and case history of an infection with the cryptosporidium horse genotype.subtyping was conducted in late 2007 on 57 cryptosporidium specimens from sporadic cases in colorado, idaho, new mexico, and iowa. one previously rare cryptosporidium hominis subtype was identified in 40 cases (70%) from all four states, and the cryptosporidium horse genotype was identified in a pet shop employee with severe clinical symptoms.200919587303
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, 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).200415470326
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, 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).200415282450
gifts from industry--look the gift horse in the mouth! 200111315363
virulence of three distinct cryptosporidium parvum isolates for healthy adults.the infectivity of three cryptosporidium parvum isolates (iowa [calf], ucp [calf], and tamu [horse]) of the c genotype was investigated in healthy adults. after exposure, volunteers recorded the number and form of stools passed and symptoms experienced. oocyst excretion was assessed by immunofluorescence. the id50 differed among isolates: iowa, 87 (se, 19; 95% confidence interval [ci], 48.67-126); ucp, 1042 (se, 1000; 95% ci, 0-3004); and tamu, 9 oocysts (se, 2.34; 95% ci, 4.46-13.65); tamu vers ...199910479158
the significance of western equine encephalomyelitis viral infections in aedes trivittatus (diptera: culicidae) in iowa. i. variation in susceptibility of aedes trivittatus to experimental infection with three strains of western equine encephalomyelitis virus.f1 pregnancy obtained from field-collected aedes trivittatus were evaluated for susceptibility to infection with western equine encephalomyelitis (wee) virus by intrathoracic inoculation and by oral imbibition of virus-blood suspensions through a membrane. mosquitoes were uniformly susceptible to infection by intrathoracic inoculation of three strains of wee virus, but minimum infective doses varied as much as 2,000 to 12,000-fold between strains by membrane feeding. dose-response data obtained ...19807352619
encephalomyelitis in horses. 19665948786
occurrence and seasonal incidence of mosquitoes on indian reservations in iowa, nebraska and south dakota during 1983.a mosquito surveillance program designed to prevent future human cases of western equine encephalitis or saint louis encephalitis was established in 1983 on indian reservations under the jurisdiction of the aberdeen area indian health service in iowa, nebraska and south dakota. standard new jersey light traps were operated on all reservations throughout the summer season while cdc miniature and encephalitis virus surveillance traps were employed for shorter periods of time on 4 reservations. aed ...19862906969
identification of isolate-specific sporozoite proteins of cryptosporidium parvum by two-dimensional gel electrophoresis.five isolates of cryptosporidium parvum collected from human, horse, and calf sources were compared for differences in sporozoite protein patterns by using two-dimensional gel electrophoresis. silver-stained two-dimensional gels contained over 300 protein spots from detergent-solubilized sporozoites. a distinguishing 106-kilodalton peptide that shifted in isoelectric point was detected in four of the five isolates. computerized two-dimensional gel analysis was performed to obtain objective quant ...19902365452
fumonisin b1 concentrations in feeds from 45 confirmed equine leukoencephalomalacia cases.during the fall of 1989 and winter of 1990, numerous reports of equine leukoencephalomalacia (elem) occurred from many regions of the united states. typically, horses were consuming feed partially or entirely composed of corn and/or corn screenings. from october 1989 through may 1990, samples from 55 confirmed or suspected elem cases were received at the national veterinary services laboratories, ames, iowa, for fumonisin b1 analysis. samples from 9 cases in 1984-1985 were also obtained. fumonis ...19911911996
trivittatus virus infections in wild mammals and sentinel rabbits in central iowa.a serological survey was conducted in iowa to determine the prevalence rate of california group virus antibodies in sera of several vertebrate species. serum specimens were assayed for infectivity-neutralizing antibody in a microneutralization system with baby hamster kidney cell culture. of 77 sera assayed, 21 (27%) neutralized trivittatus (tvt) virus infectivity. the antibody prevalence rate was highest for eastern cottontail rabbits inasmuch as 46% (10/22) of the serum specimens form this spe ...19751200251
vector competence of culex tarsalis (diptera: culicidae) from iowa for a sympatric strain of western equine encephalomyelitis (wee-7738) virus.experiments were designed to evaluate the vector competence of culex tarsalis coquillet from an area (sioux city) where cx. tarsalis is most abundant in iowa for western equine encephalomyelitis virus (wee-7738). wee-7738 was isolated from aedes trivittatus (coquillet) collected in ames, ia, in 1977. infection rate, dissemination rate, multiplication efficiency, and transmission rate were determined for this virus in the sc strain of cx. tarsalis. sc strain of cx. tarsalis was as susceptible to ...200015218927
investigation of selenium sources associated with chronic selenosis in horses of western iowa. 19938466974
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).200415371969
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
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