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Articles 781 - 810 of 822

Full-Text Articles in Veterinary Infectious Diseases

A Case-Control Study Of Hantavirus Pulmonary Syndrome During An Outbreak In The Southwestern United States, Paul S. Zeitz, Jay C. Butler, James E. Cheek, Michael C. Samuel, James E. Childs, Lee A. Shands, Richard E. Turner, Ronald E. Voorhees, John Sarisky, Pierre E. Rollin, Thomas G. Ksiazek, Louisa Chapman, Susan E. Reef, Kenneth K. Komatsu, Craig Dalton, John W. W. Krebs, Gary O. Maupin, Kenneth Gage, C. Mack Sewell, Robert F. Breiman, C. J. Peters Jan 1995

A Case-Control Study Of Hantavirus Pulmonary Syndrome During An Outbreak In The Southwestern United States, Paul S. Zeitz, Jay C. Butler, James E. Cheek, Michael C. Samuel, James E. Childs, Lee A. Shands, Richard E. Turner, Ronald E. Voorhees, John Sarisky, Pierre E. Rollin, Thomas G. Ksiazek, Louisa Chapman, Susan E. Reef, Kenneth K. Komatsu, Craig Dalton, John W. W. Krebs, Gary O. Maupin, Kenneth Gage, C. Mack Sewell, Robert F. Breiman, C. J. Peters

Zoonotics and Wildlife Disease: Publications

In May 1993, an outbreak of hantavirus pulmonary syndrome( HPS) occurred in the south-western United States. A case-control study determined risk factors for HPS. Seventeen case-patients were compared with 3 groups of controls: members of case-patient households( household controls), members of neighboring households( near controls), and members of randomly selected households ≥ 24 km away ( far controls). Investigators trapped more small rodents at case households than at near ( P = .03) or far control households( P = .02). After the number of small rodents was controlled for,case-patients were more likely than household controls to hand plow (odds ratio …

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Guidelines For Working With Rodents Potentially Infected With Hantavirus, James N. Mills, Terry L. Yates, James E. Childs, Robert R. Parmenter, Thomas G. Ksiazek, Pierre E. Rollin, C.J. Peters Jan 1995

Guidelines For Working With Rodents Potentially Infected With Hantavirus, James N. Mills, Terry L. Yates, James E. Childs, Robert R. Parmenter, Thomas G. Ksiazek, Pierre E. Rollin, C.J. Peters

Zoonotics and Wildlife Disease: Publications

Because of the high morbidity and mortality associated with hantavirus pulmonary syndrome and the possibility of aerosol transmission of hantaviruses, persons handling known reservoir species in the field, laboratory, or classroom should take special precautions to minimize the risk of infection. We provide specific guidelines for personal safety while trapping, handling and releasing, transporting, sampling, and performing necropsy on potentially infected rodents or teaching field classes in areas occupied by reservoir species. Special consideration should be given to respiratory protection, choice and use of disinfectants, decontamination of instruments and traps, proper disposal of infectious wastes, and preservation and shipment of …

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Serologic And Genetic Identification Of Peromyscus Maniculatus As The Primary Rodent Reservoir For A New Hantavirus In The Southwestern United States, James E. Childs, Thomas G. Ksiazek, Christina F. Spiropoulou, John W. Krebs, Sergey Morzunov, Gary O. Maupin, Kenneth L. Gage, Pierre E. Rollin, John Sarisky, Russell E. Enscore, Jennifer K. Frey, C. J. Peters, Stuart T. Nichol Jan 1994

Serologic And Genetic Identification Of Peromyscus Maniculatus As The Primary Rodent Reservoir For A New Hantavirus In The Southwestern United States, James E. Childs, Thomas G. Ksiazek, Christina F. Spiropoulou, John W. Krebs, Sergey Morzunov, Gary O. Maupin, Kenneth L. Gage, Pierre E. Rollin, John Sarisky, Russell E. Enscore, Jennifer K. Frey, C. J. Peters, Stuart T. Nichol

Zoonotics and Wildlife Disease: Publications

An outbreak of hantavirus pulmonary syndrome(H PS) in the southwestern United States was etiologically linked to a newly recognized hantavirus. Knowledge that hantaviruses are maintained in rodent reservoirs stimulated a field and laboratory investigation of 1696 small mammals of 31 species. The most commonly captured rodent, the deer mouse( Peromyscus maniculatus), had the highest antibody prevalence(3 %)to four hantavirus antigens. Antibody also was detected in 10 other species of rodent and in 1 species of rabbit. Reverse transcriptase-polymerase chain reaction( RT-PCR)products of hantavirus from rodent tissues were indistinguishable from those from human H PS patients. More than 96% of …

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White-Tailed Deer As A Potential Reseroir Of Ehrlichia Spp., Jacqueline E. Dawson, James E. Childs, Kristine L. Biggie, Charla Moore, David Stalknecht, John Shaddock, John Bouseman, Erik Hofmeister, James G. Olson Jan 1994

White-Tailed Deer As A Potential Reseroir Of Ehrlichia Spp., Jacqueline E. Dawson, James E. Childs, Kristine L. Biggie, Charla Moore, David Stalknecht, John Shaddock, John Bouseman, Erik Hofmeister, James G. Olson

Zoonotics and Wildlife Disease: Publications

We determined the antibody prevalence to Ehrlichia spp., in white-tailed deer (Odocoileus virginianus) and the geographic distribution of seropositive animals in 84 counties in Alabama, Arkansas, Florida, Georgia, Illinois, Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, Missouri, North Carolina, South Carolina, Tennessee, Texas, Virginia, and West Virginia (USA). Using an indirect fluorescent antibody test we detected antibodies (≥ 1:128) to this bacterium in 544 (43%) of 1269 deer. Presence of antibodies to Ehrlichia spp. was related to a southerly latitude, low elevation, and resulting milder climatic conditions. It appears that whitetailed deer were naturally infected with Ehrlichia spp.; the infection …

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Expression Of Functional Protease And Subviral Particles By Vaccinia Virus Containing Equine Infectious Anaemia Virus Gag And 5' Pol Genes, Travis C. Mcguire, Katherine I. O'Rourke, Timothy V. Baszler, Steven R. Leib, Alberta L. Brassfield, William C. Davis Jan 1994

Expression Of Functional Protease And Subviral Particles By Vaccinia Virus Containing Equine Infectious Anaemia Virus Gag And 5' Pol Genes, Travis C. Mcguire, Katherine I. O'Rourke, Timothy V. Baszler, Steven R. Leib, Alberta L. Brassfield, William C. Davis

Zoonotics and Wildlife Disease: Publications

Cells infected with vaccinia viruses expressing the equine infectious anaemia virus (EIAV) gag gene (VGag) or gag plus the 5' pol encoding protease (VGag/PR) were evaluated with monoclonal antibody to a p26 capsid protein linear epitope (QEISKFLTD). Both recombinant viruses expressed Gag precursor protein (55K) whereas only VGag/PR expressed a detectable Gag-Pol fusion protein (82K) with a functional protease, shown by subviral particles containing processed p26. Horses inoculated with VGag/PR produced antibodies reactive with EIAV Gag proteins.

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Scid Mouse Spleen Does Not Support Scrapie Agent Replication, Katherine I. O'Rourke, T. P. Huff, C. W. Leathers, M. M. Robinson, J. R. Gorham Jan 1994

Scid Mouse Spleen Does Not Support Scrapie Agent Replication, Katherine I. O'Rourke, T. P. Huff, C. W. Leathers, M. M. Robinson, J. R. Gorham

Zoonotics and Wildlife Disease: Publications

BALB/c and severe combined immunodeficiency (SCID) mice were inoculated intracerebrally or intraperitoneally with scrapie agent strain ME7 to examine the role of functional lymphocytes and follicular dendritic cells in splenic infectivity and PrPsc accumulation. Intracerebrally inoculated BALB/c and SCID mice developed the clinical signs and microscopic lesions characteristic of scrapie. Spleens from terminally affected BALB/c mice contained PrPsc which was detectable by immunoblot analysis; SCID mouse spleens did not contain detectable PrP so. SCID mouse spleens collected during the first 90 days after intraperitoneal infection contained neither infectivity nor PrPsc.

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Major Histocompatibility Complex-Restricted Cd8+ Cytotoxic T Lymphocytes From Horses With Equine Infectious Anemia Virus Recognize Env And Gag/Pr Proteins, Travis C. Mcguire, Daniel B. Tumas, Katherine M. Byrne, Melissa T. Hines, Steven R. Leib, Alberta L. Brassfield, Katherine I. O'Rourke, Lance E. Perryman Jan 1994

Major Histocompatibility Complex-Restricted Cd8+ Cytotoxic T Lymphocytes From Horses With Equine Infectious Anemia Virus Recognize Env And Gag/Pr Proteins, Travis C. Mcguire, Daniel B. Tumas, Katherine M. Byrne, Melissa T. Hines, Steven R. Leib, Alberta L. Brassfield, Katherine I. O'Rourke, Lance E. Perryman

Zoonotics and Wildlife Disease: Publications

Cytotoxic T lymphocytes (CTL) can control some viral infections and may be important in the control of lentiviruses, including human immunodeficiency virus type 1. Since there is limited evidence for an in vivo role of CTL in control of lentiviruses, dissection of immune mechanisms in animal lentiviral infections may provide needed information. Horses infected with equine infectious anemia virus (EIAV), a lentivirus, have acute plasma viremia which is terminated in immunocompetent horses. Viremic episodes may recur, but most horses ultimately control infection and become asymptomatic carriers. To begin dissection of the immune mechanisms involved in EIAV control, peripheral blood mononuclear …

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Genetic Identificationo F A Hantavirusa Ssociated With An Outbreako F Acute Respiratoryi Llness, Stuart T. Nichol, Christina F. Spiropoulou, Sergey Morzunov, Pierre E. Rollin, Thomas G. Ksiazek, Heinz Feldmann, Anthony Sanchez, James E. Childs, Sherif Zaki, Clarence J. Peters Jan 1993

Genetic Identificationo F A Hantavirusa Ssociated With An Outbreako F Acute Respiratoryi Llness, Stuart T. Nichol, Christina F. Spiropoulou, Sergey Morzunov, Pierre E. Rollin, Thomas G. Ksiazek, Heinz Feldmann, Anthony Sanchez, James E. Childs, Sherif Zaki, Clarence J. Peters

Zoonotics and Wildlife Disease: Publications

A mysterious respiratory illness with high mortality was recently reported in the southwestern United States. Serologic studies implicated the hantaviruses, rodent-borne RNA viruses usually associated elsewhere in the world with hemorrhagic fever with renal syndrome. A genetic detection assay amplified hantavirus-specific DNA fragments from RNA extracted from the tissues of patients and deer mice (Peromyscus maniculatus) caught at or near patient residences. Nucleotide sequence analysis revealed the associated virus to be a new hantavirus and provided a direct genetic link between infection in patients and rodents.

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Infection With A Ratborne Hantavirus In Us Residents Is Consistently Associated With Hypertensive Renal Disease, Gregory E. Glass, Alan J. Watson, James W. Leduc, Gabor D. Kelen, Thomas C. Quinn, James E. Childs Jan 1993

Infection With A Ratborne Hantavirus In Us Residents Is Consistently Associated With Hypertensive Renal Disease, Gregory E. Glass, Alan J. Watson, James W. Leduc, Gabor D. Kelen, Thomas C. Quinn, James E. Childs

Zoonotics and Wildlife Disease: Publications

A survey of 8080 subjects was conducted in Baltimore, examining the association between infection with hantaviruses and renal disease. Two groups (N = 6060) with no known risk factors were selected to establish a baseline antibody prevalence. Overall, antibody prevalence was 0.25%. Seroprevalence increased with age, without sex- or race-related differences. Patients with proteinuria showed the same patterns of infection but were more commonly seropositive (1.46%) than the reference group( OR, 3.23; P < .05). Infection among dialysis patients with end-stage renal disease was 2.76%, significantly higher than in the reference group( OR, 5.03; P < .05). In the proteinuria and the dialysis groups, hantavirus infection was consistently associated with a diagnosis of hypertensive renal disease. The association was unrelated to other chronic renal disease diagnoses. Overall, 6.5% of patients with end-stage renal disease due to hypertension were seropositive for a hantavirus. These data suggest that hantavirus infection is associated with hypertensive renal disease.

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Reproductive Characteristics Of Rodent Assemblages In Cultivated Regions Of Central Argentina, James N. Mills, Barbara A. Ellis, Kelly T. Mckee, Julio I. Maiztegui, James E. Childs Jan 1992

Reproductive Characteristics Of Rodent Assemblages In Cultivated Regions Of Central Argentina, James N. Mills, Barbara A. Ellis, Kelly T. Mckee, Julio I. Maiztegui, James E. Childs

Zoonotics and Wildlife Disease: Publications

Small mammals were trapped for 2 years at 16 localities on the central-Argentine pampa. Six species (Akodon azarae, Calomys musculinus, C. laucha, Bolomys obscurus, Oligory-zomys flavescens and Mus musculus) accounted for >95% of captures. The major breeding season, as assessed by pregnancies, was September or October through April or May. Mild weather in late autumn and winter of the second season resulted in a relatively longer breeding season during the 2nd year of the study. Females of all six species comprised significantly 50% of captures during the height of the breeding season. For most species, there was …

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Habitat Associations And Relative Densities Of Rodent Populations In Cultivated Areas Of Central Argentina, James N. Mills, Barbara A. Ellis, Kelly T. Mckee, Julio I. Maiztegui, James E. Childs Jan 1991

Habitat Associations And Relative Densities Of Rodent Populations In Cultivated Areas Of Central Argentina, James N. Mills, Barbara A. Ellis, Kelly T. Mckee, Julio I. Maiztegui, James E. Childs

Zoonotics and Wildlife Disease: Publications

Small mammals were livetrapped during 12 months in crop fields and weedy borders at 18 sites in central Argentina. A total of 1,652 mammals of 14 species was captured during3 3,060 trap-nights. Six species of rodents comprised > 95% of captures. Periodically disturbed fields of crops were dominated by Calomys musculinus and C. laucha, and to a lesser extent Mus musculus. A second group composed of Akodon azarae, Bolomys obscures, and Oligoryzomys flavescens primarily inhabited the more stable, weedy borders of cultivated fields. Peaks in relative densities of C. musculinus, C. laucha, and M . musculus …

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Chemical Immobilization Of Red Foxes (Vulpes Vulpes), Terry J. Kreeger, Ulysses S. Seal, John R. Tester Jan 1990

Chemical Immobilization Of Red Foxes (Vulpes Vulpes), Terry J. Kreeger, Ulysses S. Seal, John R. Tester

Zoonotics and Wildlife Disease: Publications

Red foxes (Vulpes vulpes) were immobilized with one of the following drug combinations: ketamine/xylazine (n = 22), ketamine/ promazine (n = 35), ketamine/midazolam (n = 13), or tiletamine/zolazepam (n = 22). Foxes given ketamine/xylazine had the shortest induction and longest recovery times relative to other drug combinations, whereas foxes given ketamine/midazolam had the longest induction times. Recommended doses for the various combinations are given. Foxes given ketamine/xylazine were given either 0.1, 0.2, 0.4 mg/kg yohimbine, or saline 40 mm after anesthetic induction. Administration of yohimbine significantly shortened arousal and recovery times relative to control values (P < 0.001).

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Determining Matrilines By Antibody Response To Exotic Antigens, Gregory E. Glass, James E. Childs, James W. Leduc, Sandra D. Cassard, Albert D. Donnenberg Jan 1990

Determining Matrilines By Antibody Response To Exotic Antigens, Gregory E. Glass, James E. Childs, James W. Leduc, Sandra D. Cassard, Albert D. Donnenberg

Zoonotics and Wildlife Disease: Publications

The antibody responses of female Microtuspennsylvanicus inoculated with a series of antigens not normally encountered under field conditions were examined, and the kinetics of maternally acquired antibody loss in their offspring were determined. The initial antibody response in adults was rapid, peaking in 4-9 weeks, and long-lasting, with a half life of 4-5 months. Antibody levels in females were unaffected by parity, and more than one antigen could be given without affecting circulating-antibody titers. Antibody titers could be enhanced with additional inoculations. Maternal antibody in offspring increased until weaning at 3 weeks then declined exponentially. Minimal detectable titers were reached …

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Late Fall Transmission Of Nematodirus Battus (Nematoda: Trichostrongyloidea) In Western Oregon, Lora G. Rickard, Eric P. Hoberg, Gary L. Zimmerman, Jannell K. Erno Jan 1987

Late Fall Transmission Of Nematodirus Battus (Nematoda: Trichostrongyloidea) In Western Oregon, Lora G. Rickard, Eric P. Hoberg, Gary L. Zimmerman, Jannell K. Erno

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Studies on Nematodirus battusCrofton and Thomas, 1951, have shown a marked seasonality in the pattern of transmission. The life cycle normally involves only one parasitic generation per year. The infective third-stage larvae develop over the summer within eggs deposited on pasture. Eggs are sensitized by low temperatures during fall and winter; larval hatching follows in the presence of adequate moisture and proper osmotic conditions as the temperature rises above 10°C. This set of conditions, conducive to hatching, is regularly present only during spring; thus, hatching of eggs is concentrated into a few weeks during this time. Outbreaks of clinical …

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The Incidence Of Cryptosporidial Infections In Nebraska Dairy Calves, Douglas Lee Varner Jul 1986

The Incidence Of Cryptosporidial Infections In Nebraska Dairy Calves, Douglas Lee Varner

School of Veterinary and Biomedical Sciences: Dissertations, Theses, and Student Research

Within the last decade a new etiologic agent has been identified as a possible cause of diarrhea in humans and domestic animals—that being the protozoan parasite Cryptosporidium. The purpose of this study was to determine the incidence and distribution of Cryptosporidium in the state of Nebraska, to determine if Cryptosporidium occurs more frequently in association with other enteropathogens and to determine about the relation of scouring in the calves to infection with Cryptosporidium. A total of 620 fecal samples from 334 dairy calves from 71 herds in Nebraska were examined for cyptosporidial oocysts using the Sheather’s sugar flotation …

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Infectious Pancreatic Necrosis (Ipn) Of Salmonid Fishes, Phillip E. Mcallister Jan 1983

Infectious Pancreatic Necrosis (Ipn) Of Salmonid Fishes, Phillip E. Mcallister

United States Fish and Wildlife Service: Publications

Infectious pancreatic necrosis (IPN) is a viral disease principally associated with salmonids, although IPN and lPN-like viruses have been isolated from various nonsa1rnonid fish and marine invertebrates. Acute infection occurs in 1- to 4-month-old salmonids and can result in cumulative mortality approaching 100%. In contrast, fish 6 months old or older can undergo subclinical or inapparent infection, but experience no significant mortality. Survivors of the disease can become lifelong carriers of the virus. Epizootics of IPN have been reported worldwide, and several virus serotypes are recognized. The disease known as IPN was probably first described by M'Gonigle (1941) as acute …

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Ec75-219 Nebraska Swine Report, William Ahlschwede, T. E. Socha, Alfonso Torres-Medina, A. J. Lewis, P. J. Cunningham, Dwane R. Zimmerman, E. R. Peo Jr., Larry K. Mcmullen, Bobby D. Moser, D. L. Ferguson, Phillip H. Grabouski, Murray Danielson, Charles W. Francis, L. F. Elliott, J. A. Deshazer, Roger W. Mandigo, W. J. Goldner, R. D. Fritschen, Gary Zoubek Jan 1975

Ec75-219 Nebraska Swine Report, William Ahlschwede, T. E. Socha, Alfonso Torres-Medina, A. J. Lewis, P. J. Cunningham, Dwane R. Zimmerman, E. R. Peo Jr., Larry K. Mcmullen, Bobby D. Moser, D. L. Ferguson, Phillip H. Grabouski, Murray Danielson, Charles W. Francis, L. F. Elliott, J. A. Deshazer, Roger W. Mandigo, W. J. Goldner, R. D. Fritschen, Gary Zoubek

University of Nebraska-Lincoln Extension: Historical Materials

This 1975 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating departments for use in the Extension and Teaching programs at the University of Nebraska-Lincoln. Authors from the following areas contributed to this publication: Swine Nutrition, swine diseases, pathology, economics, engineering, swine breeding, meats, agronomy, and diagnostic laboratory. It covers the following areas: breeding, disease control, feeding, nutrition, economics, housing and meats.

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Calf Diarrhea (Scours): Reproduced With A Virus From A Field Outbreak, C. A. Mebus, N. R. Underdahl, M. B. Rhodes, M. J. Twiehaus Mar 1969

Calf Diarrhea (Scours): Reproduced With A Virus From A Field Outbreak, C. A. Mebus, N. R. Underdahl, M. B. Rhodes, M. J. Twiehaus

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Neonatal calf diarrhea typical of that seen in field cases was produced in colostrum-deprived calves by inoculating either feces or bacteria-free filtrates via the duodenum, orally, or by a spray (aerosol). Three calves, kept free of E. coli, developed severe diarrhea following inoculation with a bacteria-free filtrate. Intense fluorescence in the epithelium of sections of small intestine from two experimental calves was observed following staining with ftuorescein-labeled gamma globulin produced with viral antigen prepared from the feces of two experimental diarrhetic E. coli-free calves. Fluorescing cells were also present in the feces of experimental and field cases of neonatal …

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Problems Of Epidemiological Geography (Report Viii): Structure Of A Zoonosis Nosoareal, I.I. Yelkin, V.K. Yaschkul Feb 1968

Problems Of Epidemiological Geography (Report Viii): Structure Of A Zoonosis Nosoareal, I.I. Yelkin, V.K. Yaschkul

Zoonotics and Wildlife Disease: Publications

The Main structural indices of a nosoareal are the focalress in the distribution of infectious diseases of man and their causative agents. The problem of the focalness of infections has been developed for quite a long time in the field of parasitology and is a very important division of contemporary epidemiology (Ye. N. Pavlovskiy, 1939, 1944, 1955, 1960, 1961, 1964; L. V. Gromashevskiy, 1941, 1949, 1965; I. I. Yelkin, 1951, 1960, 1962; P. A. Petrishcheva, 1955, 1959, 1965; V. N. Beklemishev, 1956, 1959, 1961; Yu. M. Rall, 1958, 1965; V. V. Kucheruk, 1959, 1960, 1965; A. G. Voronov, 1965, and …

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Swine Brucellosis: How You Can Eradicate It Jan 1961

Swine Brucellosis: How You Can Eradicate It

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Swine brucellosis is a bacterial disease that affects swine, other domestic animals, and humans. Severe exposure causes the disease in cattle, dogs, cats, and poultry. The disease can spread from one species of animal to another, and from animals to humans. However, it does not normally spread from one human to another, or from humans to animals. The disease costs the swine industry about $10 million a year. Losses due to human infection cannot be estimated. Although human brucellosis, or undulant fever, is difficult to diagnose-especially in mild cases-a total of 892 cases were documented in the United States in …

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Pig Typhus (Salmonellosis Suis), L. Van Es Aug 1946

Pig Typhus (Salmonellosis Suis), L. Van Es

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Salmonellosis suis or pig typhus, also designated as pig typhoid, infectious necrotic enteritis, or "necro," is an infectious disease among young pigs. It constitutes a major factor in the mortality of juvenile swine, and as such must be regarded as a more or less perennial hazard in swine production. Infectious necrotic enteritis caused by Salmonella suipestifer is the subject of the present publication.

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Studies On The Validity Of Swine Erysipelas Culture-Vaccines, L. Van Es, J. F. Olney, I. C. Blore Jun 1946

Studies On The Validity Of Swine Erysipelas Culture-Vaccines, L. Van Es, J. F. Olney, I. C. Blore

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In countries where vaccination against swine erysipelas has been practiced during the last half century, there is a consensus among veterinarians that the best results are obtained when the live culture-vaccine is not only fresh and highly virulent but is endowed also with a good capacity for growth on artificial culture media. Apparently avirulent culture-vaccines are apt to engender only a transitory immunity or fail altogether. The problem presented by undesirable culture-vaccines was deemed to be of such importance to the swine industry that this Station undertook a series of experiments, to determine what influences might be accountable for the …

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The Effects Of Penicillin On E. Rhusiopathiae Infected Pigeons, L. Van Es, J. F. Olney, I. C. Blore Oct 1945

The Effects Of Penicillin On E. Rhusiopathiae Infected Pigeons, L. Van Es, J. F. Olney, I. C. Blore

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Advantage was taken of an opportunity to study the effects of penicillin on Erysipelothrix rhusiopathiae, the causative organism of swine erysipelas. Owing to the fact that swine cannot readily be infected with erysipelas by artificial methods, pigeons which are highly susceptible to the disease, were selected to serve as experimental animals. It was the purpose of these studies to ascertain whether or not the swine erysipelas bacillus is sensitive to the drug and incidentally to determine the possibility of finding application of penicillin in the treatment of swine.

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Collected Observations Pertaining To Hog Cholera, L. Van Es, J. F. Olney Oct 1944

Collected Observations Pertaining To Hog Cholera, L. Van Es, J. F. Olney

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This bulletin reports on the following: (1) the possible role of Salmonella suipestifer in failed vaccinations (vaccination breaks); (2) excessive serum dosages as a cause of vaccination breaks; (3) experiments with crystal-violet hog cholera vaccine and (4) hog cholera vaccine of tissue origin, and (5) phenolized hog cholera virus as a possible vehicle for pathogenic contaminants.

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Swine Erysipelas Infection In Man, L. Van Es Aug 1942

Swine Erysipelas Infection In Man, L. Van Es

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The preceding decade witnessed the introduction and spread within this state of a hitherto uncommon disease of swine. This disorder, swine erysipelas, has gradually become disseminated throughout Nebraska's swine population until it has developed into a major problem of preventive veterinary medicine. Its appearance, furthermore, added another to our list of animal maladies which are communicable to man. The latter consideration may serve as warrant to review what is known about the part played by swine erysipelas as a human disease, to describe its more salient features and to examine them from epidemiological, clinical, pathological and prophylactic viewpoints.

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Swine Erysipelas. Revised Edition Of Research Bulletin 84, L. Van Es, C. B. Mcgrath Jun 1942

Swine Erysipelas. Revised Edition Of Research Bulletin 84, L. Van Es, C. B. Mcgrath

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Because of the more or less frequent occurrence of swine erysipelas on Nebraska farms it seemed proper that information on this subject be made available in the form of a Station publication, especially written to serve as a reference for veterinarians, who naturally are first appealed to when an as yet relatively strange disease appears among a herd of swine. Hence the text is written in a technical form for the sake of precision. In the preparation of the text the literature of countries in which for many years the disease has constituted a permanent problem has been freely consulted. …

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An Inquiry Into The Influence Of Environment On The Incidence Of Poultry Diseases, L. Van Es, J. F. Olney Mar 1940

An Inquiry Into The Influence Of Environment On The Incidence Of Poultry Diseases, L. Van Es, J. F. Olney

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The principal purpose of the investigation reported here was to evaluate, if possible, hygienic measures, and in addition to gather whatever information might become available pertaining to the relation of certain disorders to a given poultry population after its exposure to their specific etiologic factors. The experiments were conducted on a piece of ground upon which poultry had not been maintained for many years, if ever.

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Feeding And Care Of Calves, R. R. Thalman Aug 1938

Feeding And Care Of Calves, R. R. Thalman

Nebraska Agricultural Experiment Station: Historical Circulars

It is not infrequent that considerable difficulty is encountered in raising calves with limited amounts of milk or none at all. Requests for information on calf gruels, mixed grain feeds, and commercial supplements are frequent enough to make a short circular upon this subject seem desirable. Furthermore, as the more diversified agricultural program gets under way these requests are increasmg.

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The Prevention Of Anthrax, L. Van Es Feb 1938

The Prevention Of Anthrax, L. Van Es

Nebraska Agricultural Experiment Station: Historical Circulars

Anthrax is a communicable disease, caused by a specific germ known as the anthrax bacillus. Cattle, sheep, horses and swine are susceptible to the infection and in variable degree this susceptibility is shared by other animal species, including man.

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The Immunizing Value Of Commercial Hemorrhagic Septicemia Aggressins, L. Van Es, J. F. Olney Nov 1936

The Immunizing Value Of Commercial Hemorrhagic Septicemia Aggressins, L. Van Es, J. F. Olney

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In 1924, Gochenour published the results of certain experiments which tended to show that what he regarded as a specific aggressin possessed an immunizing value against hemorrhagic septicemia. The aggressin he prepared, by the use of a highly virulent strain of Bacillus bipolaris, was described as having adequately protected seven bovine yearlings against inoculations with the same organism which, when injected into four yearlings, used as virus controls, proved fatal to them. Soon after, if not simultaneously with, the publication of the Gochenour articles, hemorrhagic septicemia aggressin was placed on the market and apparently has since then been sold …

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