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Pythiosis of the digestive tract in dogs from Oklahoma.

Enteric pythiosis was diagnosed in nine dogs in Oklahoma. Eight dogs had anorexia and weight loss. Two of these dogs had diarrhea; two dogs exhibited vomiting and diarrhea; and one dog had vomiting. One dog presented with dysphagia. Seven dogs had either a palpable or radiographically visible abdominal mass. These seven dogs had localized regions of mucosal ulceration and thickened gastric or intestinal walls with some involvement of the adjacent mesentery or omentum. Two dogs had enlarged regional mesenteric lymph nodes. One dog that presented with dysphagia had an oropharyngeal mass involving the larynx and cranial esophagus. Microscopically, there was transmural chronic sclerosing and granulomatous to pyogranulomatous inflammation with arteritis. Pythium spp. were identified in all specimens by immunohistochemistry.

Animals↗

PubMed1975

Hemoprotozoa in mourning doves and other small birds of western Oklahoma.

Blood smears obtained from 370 birds live-trapped in western Oklahoma were examined for hemoprotozoa. Haemoproteus spp. were found in 189 (90.4%) mourning doves (Zenaida macroura), one oriole (Icterus galbula), two mockingbirds (Mimus polyglottos), and three brown thrashers (Toxostoma rufum). Plasmodium sp. was present in one brown thrasher. Haemoproteus spp. in the mourning dove were identified as H. sacharovi and H. maccallumi, with the latter species predominating. The average parasitemia for doves infected only with H. sacharovi was 0.1% of the erythrocytes, for doves infected only with H. maccallumi it was 0.9%, and in doves with dual infections 1.8% of the erythrocytes were infected.

Animals↗

PubMed1977

Some infectious and parasitic diseases in Oklahoma raptors.

Blood films and sera samples from wild Oklahoma raptors (Strigiformes--36 birds, 3 species; Falconiformes--50 birds, 7 species) were examined for hematozoa and tested for serologic antibody response to Newcastle Disease Virus (NDV), encephalitis (EEE and WEE), ornithosis, and influenza. Twenty-nine of 36 (80.5) Strigiformes and 24 of 50 (48.0%) Falconiformes showed the presence of one or more hematozoa. Serologic testing revealed the serum of one adult male red-tailed hawk positive for antibody to NDV and one additional adult male red-tailed hawk positive for antibody to type-A influenza.

Animals↗

PubMed1979

Some parasitic and infectious diseases in waterfowl in Oklahoma.

Blood films and serum samples from free-ranging waterfowl wintering in and migrating through Oklahoma were examined for hematozoa and tested for antibody responses to Newcastle disease virus (NDV) and type-A influenza. One-hundred-eleven of 728 birds (15.24%) were positive for 1 or more hematozoa. Serologic testing revealed 11 of 280 (3.93%) positive for antibody to NDV and 5 of 171 (2.95%) positive for antibody to type-A influenza.

Animals↗

PubMed1980

Influenza A viruses isolated from migrating ducks in Oklahoma.

Nine type A influenza viruses were isolated from migrating and wintering ducks in Oklahoma in 1976-77. Antigenic classification of the viruses isolated revealed three different subtypes: Hav1 Nav2, Hws N1, and Hav6 N2. Transmission of influenza viruses from the wild ducks to sentinel birds (McGraw mallards) on the same lakes was not detected.

Animals↗

PubMed1980

Heavy metal concentrations in the kidneys of white-tailed deer in Oklahoma.

Concentrations of renal lead, arsenic, mercury and cadmium from 64 free-ranging adult white-tailed deer (Odocoileus virginianus) were determined. The mean concentrations in ppm wet weight and standard deviations for the metals were: lead, 0.574 +/- 0.646; arsenic, 0.189 +/- 0.320; mercury, 0.176 +/- 0.114; and cadmium, 6.698 +/- 9.215. Variations in heavy metal concentrations in deer collected from differing ecoregions within Oklahoma are discussed.

Age Factors↗

PubMed1982

Hematologic and serum chemical values of adult female Rocky Mountain elk from New Mexico and Oklahoma.

Hematologic and serum chemical values were determined for two groups of adult female Rocky Mountain elk (Cervus elaphus nelsoni) from New Mexico and Oklahoma. Although considerable variation in values was observed between elk from the same group, the mean values from 16 of the 20 blood parameters tested were significantly different between the two groups. Of these, the most significant variations were observed in values which were likely to be influenced by nutritional condition and health status. The results of this study indicate that when evaluating the health status of different herds kept under known conditions, hematologic and serum chemical values are of optimal significance when the mean values of the herds are compared.

Animal Population Groups↗

PubMed1983

Haemoproteus and Leucocytozoon infections in birds of the Oklahoma City Zoo.

A total of 222 birds, captive or free-flying in the Oklahoma City Zoo, were examined for blood parasites; 31 (14%) harbored Haemoproteus and/or Leucocytozoon. While 21% of the indigenous avifauna were infected, only 8% of the exotic bird species harbored haemoproteids and these parasites were also exotic to North America. There was no evidence to indicate that exotic infections were transmitted to native birds or vice versa.

Animals↗

PubMed1989

Serological prevalence and isolation of Babesia odocoilei among white-tailed deer (Odocoileus virginianus) in Texas and Oklahoma.

Serum samples collected from 581 white-tailed deer (Odocoileus virginianus) from Texas and from 124 white-tailed deer from Oklahoma were tested by the indirect fluorescent antibody technique against Babesia odocoilei. Prevalence of seropositive reactors varied from site to site in both states. Prevalence rates were statistically ranked as high, intermediate or low. Deer less than 12-mo-old had a significantly lower prevalence than all other age classes.

Age Factors↗

PubMed1990

Strongyloidiasis in cotton rats (Sigmodon hispidus) from central Oklahoma.

Thirty-one of 40 cotton rats (Sigmodon hispidus) collected from central Oklahoma were infected with Strongyloides sp. (78% prevalence). Larvae of Strongyloides sp. (rhabditiform or filariform) were not demonstrable in intestinal contents and scrapings. Female nematodes recovered from intestinal contents and scrapings had morphological similarities with Strongyloides sigmodontis. Cotton rats infected with Strongyloides sp. were indistinguishable clinically from non-infected hosts. Infected animals had no significant gross lesions, but the presence of Strongyloides sp. in the intestinal mucosa was associated with villus atrophy and mild to moderate infiltration of the lamina propria by lymphocytes, plasma cells and occasional eosinophils. Other organs or tissues examined were free from lesions induced by Strongyloides sp.

Animals↗

PubMed1992

Isolation of Borrelia burgdorferi from Peromyscus leucopus in Oklahoma.

Borrelia burgdorferi was isolated from a field-caught Peromyscus leucopus from central Oklahoma (USA). The strain was identified as B. burgdorferi by reaction with monoclonal antibody H5332 specific for the outer surface protein OspA of B. burgdorferi. This represents the first isolation of B. burgdorferi from a wild mouse outside of the normal range of the known vectors Ixodes dammini and I. pacificus.

Animals↗

PubMed1992

Cause-specific mortality of white-tailed deer as influenced by military training activities in southwestern Oklahoma.

Radio-telemetry was used to monitor movements and mortality of 56 white-tailed deer (Odocoileus virginianus) in response to intensive military training activities on West Range (18,000 ha), Fort Sill Military Reservation, Oklahoma. Cause-specific mortality was determined for 22 radio-collared deer, including adults (greater than or equal to 2.0-yr-old), yearlings (0.6-1.9-yr-old), and fawns (less than or equal to 75-day-old age group) from 1987 to 1989. Winter home ranges were largely confined to a 14,411 ha impact area centrally located on West Range. The mean annual mortality rate was 0.50 for adults and yearlings combined. Fifty percent of all adult and yearling mortality was attributed to military training activities, 28% to hunting, 16% to collisions with automobiles, and 6% to unknown causes. The mean monthly mortality rate was 0.61 for neonatal fawns and predation accounted for three of four mortalities. All captured deer in the greater than or equal to 2.6-yr-old, 82% in the 1.6-yr-old, 10% in the 0.6-yr-old, and all deer in the less than 7-day-old age groups were seropositive for bluetongue virus (BTV). Our study strongly suggests that the consequences of military training activities should be considered in the management of white-tailed deer herds on military installations.

Animals↗

PubMed1998

Serosurvey of selected viral and bacterial diseases in wild swine from Oklahoma.

Blood samples collected from 120 wild swine (Sus scrofa) in thirteen Oklahoma (USA) counties during 1996 were tested for antibodies against six viral and two bacterial diseases. No antibodies to swine brucellosis, pseudorabies, transmissible gastroenteritis, and vesicular stomatitis were detected. Antibody titers to one or more leptospiral serovars were found in 44% of the samples, the two most frequent serovars being Leptospira interrogans serovars bratislava (29%) and pomona (27%). Antibody against porcine parvovirus and swine influenza virus was detected in 17% and 11% of the swine, respectively. Two samples (2%) were positive for antibody to the recently emerged porcine reproductive and respiratory syndrome virus.

Agglutination Tests↗

PubMed1999

Naturally occurring hepatozoonosis in coyotes from Oklahoma.

Nine of 16 free-ranging coyotes (Canis latrans) from central Oklahoma (USA) had naturally acquired infections of Hepatozoon americanum. Infections were confirmed by recognition of tissue stages closely resembling H. americanum in skeletal and cardiac muscle. At the time coyotes were collected they were infested with a variety of ticks, including adult Gulf Coast ticks (Amblyomma maculatum). We propose that the high prevalence of H. americanum in this small sample of free-ranging coyotes and the ability of these same animals to harbor adult populations of A. maculatum is an important component of the epizootiology of canine hepatozoonosis in North America.

Animals↗

PubMed2000

Muscular sarcocystosis in coyotes from Oklahoma.

In a recent survey in Oklahoma (USA), 52 free-ranging coyotes were examined for the presence of sarcocysts. Two of these coyotes were found infected with sarcocysts in skeletal muscle. By light microscopy, the cyst wall was thin and smooth. Ultrastructurally, the cyst wall had minute villar protrusions. The sarcocysts were 14.4 to 50.4 microm wide and 46.8 to 99 microm long. This is the first report of Sarcocystis sp. sarcocysts in the skeletal muscle of coyotes.

Animals↗

PubMed1995

After the bomb. Oklahoma City rescuers talk about their experiences.

Rather than trying to write a second-hand description of the response to the April 19 bombing of the Federal Building in Oklahoma City, we thought we'd let some of the people who were there caring for patients and searching for victims share their experiences in their own words. Marion Angell Garza, JEMS editorial/news coordinator, spoke at length with six responders, including paramedics, the triage and treatment officer, a firefighter/EMT-1 and an emergency physician. The following excerpts are from those interviews.

Anecdotes as Topic↗

PubMed1995

Special report. The Oklahoma City bombing: mass casualties and the local hospital response.

A morning blast at the Alfred P. Murrah Federal Building, Oklahoma City, OK, on April 19, 1995, killed 168 persons and injured more than 500 in the worst terrorist attack in U.S. history. Hospital workers, physicians, and volunteers at nine hospitals there mobilized, put their disaster emergency plans into operation, and treated 466 persons in emergency rooms--many of them later being admitted as patients. To complicate matters, two of the hospitals received bomb threats called in after the disaster. This report will look at the security plans put into force by each of the nine hospitals; the handling of the great influx of persons, including victims, relatives, friends, concerned persons, volunteers, and the news media; and the lessons hospital officials learned from their experiences.

Communication↗

PubMed1999

Perceived effects and recovery in Oklahoma City firefighters.

This survey of 325 Oklahoma City Firefighters examined their perceptions of the effect of the bombing, their recovery and their sources of support. Other variables that were considered in this analysis included age, usefulness of the Critical Incidence Stress Management (CISM) procedures, and attitude, an aggregate variable that accounted for job satisfaction. Of particular importance in this analysis was the finding that support from "faith" was a primary predictor of positive outcome and positive attitude over the one-year period. However, the effect of the variable differed for older and younger firefighters. That is, there was a greater proportion of younger firefighters among those reporting greater support from faith. These data suggest that, at least in this geographic area, chaplains, and other spiritual leaders may play a particularly important role in the aftermath of such a disaster.

Adult↗