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Topic:Disease Management

Disease management in horses encompasses the strategies and practices employed to prevent, control, and treat diseases affecting equine populations. This field involves understanding the etiology, transmission, and clinical presentation of various equine diseases, as well as implementing biosecurity measures and therapeutic interventions. Common diseases in horses include equine influenza, strangles, and equine herpesvirus. Effective disease management relies on accurate diagnosis, vaccination protocols, and the use of antimicrobials and other treatments. This page compiles peer-reviewed research studies and scholarly articles that explore the methodologies, challenges, and advancements in managing diseases in equine health.
Clinical application of interferons in large animal medicine.
Journal of the American Veterinary Medical Association    May 15, 1996   Volume 208, Issue 10 1711-1715 
Moore BR.Interferons are efficacious therapeutic agents for treatment of several clinically important diseases in cattle and horses. In some instances, the therapeutic goal of IFN administration is prevention or clinical cure of acute viral infections. On the other hand, IFN may serve as adjunctive treatment to diminish clinical manifestations of disease and improve the quality of life. Oral administration of IFN alpha appears to be a safe and convenient route of administration, and the therapeutic benefit likely develops via unique mechanisms involving oropharyngeal-associated lymphoid tissue for diss...
Chylothorax due to primary thoracic haemangiosarcoma in a horse.
Equine veterinary journal    May 1, 1996   Volume 28, Issue 3 241-244 doi: 10.1111/j.2042-3306.1996.tb03780.x
Brink P, Wilkins LP, Spano JS.No abstract available
Control of Babesia equi parasitemia.
Parasitology today (Personal ed.)    May 1, 1996   Volume 12, Issue 5 195-198 doi: 10.1016/0169-4758(96)10007-7
Knowles DP.Infection of horses with the hemoprotozoan Babesia equi has been reported in southern Florida, US Virgin Islands, part of Asia, Russia, India, the Middle East, Europe, Africa, Australia, South America, Central America, Mexico, Philippine Islands and some Caribbean islands. The restrictions placed on the international movement of infected horses has refocused attention on potential methods to control or eliminate infection. Don Knowles here discusses the primary chemotherapeutic compounds that have been used; the current knowledge concerning immune responses that potentially contribute to contr...
Inhibition of the protease activity in tracheobronchial aspirates of horses with chronic obstructive pulmonary disease.
American journal of veterinary research    May 1, 1996   Volume 57, Issue 5 603-607 
Koivunen AL, Maisi P, Fang W, Sandholm M.To clarify the role of proteolytic enzymes in the pathogenesis of chronic obstructive pulmonary disease (COPD) in horses, and to investigate new possibilities for treatment of this disease by interfering in the proteolytic process. Methods: Effect of antiproteolytic activity of selected protease inhibitors on tracheal aspirates was studied in vitro, and the inhibition profiles were compared with those of purified proteases. Methods: Respiratory tract secretions with antiproteolytic activity from 9 horses with COPD. Methods: Caseinolytic agar-diffusion assay. Results: The protease-inhibition pr...
Treatment of intranasal lymphoma in a horse by radiotherapy.
Equine veterinary journal    May 1, 1996   Volume 28, Issue 3 245-248 doi: 10.1111/j.2042-3306.1996.tb03781.x
Weaver MP, Dobson JM, Lane JG.No abstract available
Quantitative characterization of lymphocyte populations in bronchoalveolar lavage fluid and peripheral blood of normal adult Arabian horses.
Veterinary immunology and immunopathology    May 1, 1996   Volume 51, Issue 1-2 29-37 doi: 10.1016/0165-2427(95)05510-x
Hines MT, Palmer GH, Byrne KM, Brassfield AL, McGuire TC.Bronchoalveolar lavage fluid (BALF) and peripheral blood were obtained from each of 17 adult Arabian mares and absolute numbers and relative lymphocyte proportions were determined for total T lymphocytes, using CD2 as a marker, CD4 + T lymphocytes, CD8 + T lymphocytes, CD5 + lymphocytes, and sIgM + B lymphocytes. The marked variation in BALF cell recovery resulted in wide variation in absolute values for each lymphocyte subset. The relative proportions of gated BALF lymphocytes were much less variable and provided a basis for comparison of lymphocyte subsets between the BALF and peripheral blo...
Immunotherapy trial for horses in British Columbia with Culicoides (Diptera:Ceratopogonidae) hypersensitivity.
Journal of medical entomology    May 1, 1996   Volume 33, Issue 3 458-466 doi: 10.1093/jmedent/33.3.458
Anderson GS, Belton P, Jahren E, Lange H, Kleider N.Immunotherapy was used to treat horses in British Columbia for Culicoides hypersensitivity. This is a severe, chronic, recurrent allergic disease of horses that results in severe irritation, large lesions, hair loss and secondary infection in the ventral midline, mane, and proximal region of the tail. A crude Culicoides extract was injected subcutaneously, in increasing doses, into 10 horses that were affected severely by the disease. Weekly doses reduced the clinical signs in 9 of the 10 horses in the 1st yr. Eight horses were treated with a maintenance dose during a 2nd yr. After the 2nd yr,...
Horse complement protein C9: primary structure and cytotoxic activity.
Molecular immunology    May 1, 1996   Volume 33, Issue 7-8 725-733 doi: 10.1016/0161-5890(96)00007-7
Esser AF, Tarnuzzer RW, Tomlinson S, Tatar LD, Stanley KK.Lack of hemolytic activity of horse serum is an inherent property of horse C9. To understand the molecular reasons for this deficiency we have cloned C9 cDNA from a horse liver cDNA library and have sequenced the cDNA yielding the complete coding sequence for horse C9. Purification of C9 from horse plasma and microsequencing established the N-terminus of the mature protein and verified that the correct horse C9 cDNA clone had been isolated. The deduced amino acid sequence corresponds to a mature protein of 526 amino acids that is 77% identical to human C9. It has the same domain structure as h...
Evaluation of vaccination of horses as a strategy to control equine monocytic ehrlichiosis.
Journal of the American Veterinary Medical Association    April 15, 1996   Volume 208, Issue 8 1290-1294 
Atwill ER, Mohammed HO.To determine whether preferentially vaccinated horses were at risk for exposure to Ehrlichia risticii, whether horses with equine monocytic ehrlichiosis (EME) were likely to have been nonvaccinated, and whether clinical severity and financial costs associated with care and treatment of EME were less for vaccinated horses with EME than for nonvaccinated horses with EME. Methods: Cross-sectional and case-control studies. Methods: Information on usage of E risticii bacterins to control EME was collected for 2,587 horses located on 511 farms throughout New York. Each horse was tested for serum ant...
Prognosis for return to racing after recovery from infectious pleuropneumonia in thoroughbred racehorses: 70 cases (1984-1989).
Journal of the American Veterinary Medical Association    April 15, 1996   Volume 208, Issue 8 1300-1301 
Seltzer KL, Byars TD.To determine the percentage of Thoroughbred racehorses that would be capable of racing performance after recovery from infectious pleuropneumonia. Methods: Retrospective case series. Methods: 70 Thoroughbred horses that had recovered from pleuropneumonia. Only horses 5 years old known to be in race training at the time of illness were included in the study. Results: Forty-three of the 70 (61%) horses raced after recovery, and 24 of the 43 (56%) won at least 1 race. Horses that required placement of an indwelling thoracic drain apparently did not have a worse prognosis than did horses that did...
Use of transvaginal ultrasound-guided puncture for elimination of equine pregnancies.
The Veterinary clinics of North America. Equine practice    April 1, 1996   Volume 12, Issue 1 161-168 doi: 10.1016/s0749-0739(17)30302-4
Squires EL.Twinning is a major cause of abortion in mares. Although early management of twins is quite successful, twins that remain after 40 days are difficult to manage. This article reviews the current knowledge of the use of transvaginal ultrasound probe for elimination of twins. Several techniques are presented, as well as discussion on the best time during gestation for this technique to be used.
Antigenic and genetic evolution of equine H3N8 influenza A viruses.
The Journal of general virology    April 1, 1996   Volume 77 ( Pt 4) 661-671 doi: 10.1099/0022-1317-77-4-661
Daly JM, Lai AC, Binns MM, Chambers TM, Barrandeguy M, Mumford JA.Evolution of equine influenza a H3N8 viruses was examined by antigenic and genetic analysis of a collection isolates from around the world. It was noted that antigenic and genetic variants of equine H3N8 viruses cocirculate, and in particular that variants currently circulating in Europe and the USA are distinguishable from one another both in terms of antigenic reactivity and genetic structure of the HA1 portion of the haemagglutinin (HA) molecule. Whilst the divergent evolution of American and European isolates may be due to geographical isolation of the two gene pools, some mixing is believ...
Characterization of protective and enhancing immune responses to equine infectious anemia virus resulting from experimental vaccines.
AIDS research and human retroviruses    March 20, 1996   Volume 12, Issue 5 413-415 doi: 10.1089/aid.1996.12.413
Montelaro RC, Grund C, Raabe M, Woodson B, Cook RF, Cook S, Issel CJ.No abstract available
Theriogenology question of the month. Uterine rupture.
Journal of the American Veterinary Medical Association    March 15, 1996   Volume 208, Issue 6 831-832 
Waldow D.No abstract available
Medical treatment of horses with ileal impactions: 10 cases (1990-1994).
Journal of the American Veterinary Medical Association    March 15, 1996   Volume 208, Issue 6 898-900 
Hanson RR, Schumacher J, Humburg J, Dunkerley SC.To evaluate clinical and laboratory findings for horses treated medically for ileal impactions. Methods: Retrospective case series. Methods: 10 horses with primary ileal impaction that were treated successfully with medical treatment alone. Methods: Medical records were reviewed for all horses with naturally developing ileal impaction seen at our hospital between 1990 and 1994. Results: Transrectal palpation revealed an impaction in the midabdominal area in all horses. Generalized distention of the small intestine was evident in 6 horses, whereas 4 horses were examined early in the course of t...
Equine babesiosis (piroplasmosis): a problem in the international movement of horses.
The British veterinary journal    March 1, 1996   Volume 152, Issue 2 123-126 doi: 10.1016/s0007-1935(96)80066-2
Knowles D.No abstract available
Effects of equine influenza and tetanus vaccination on pulmonary function in normal and chronic obstructive pulmonary disease affected horses.
Equine veterinary journal    March 1, 1996   Volume 28, Issue 2 157-160 doi: 10.1111/j.2042-3306.1996.tb01608.x
Dixon PM, McGorum BC, Marley C, Halliwell RE, Matthews AG, Morris JR.No abstract available
Cross-sectional evaluation of environmental, host, and management factors associated with risk of seropositivity to Ehrlichia risticii in horses of New York state.
American journal of veterinary research    March 1, 1996   Volume 57, Issue 3 278-285 
Atwill ER, Mohammed HO, Lopez JW, McCulloch CE, Dubovi EJ.To locate counties within New York state with a high seroprevalence among the equine population, to determine host, management, and environmental factors that were associated with seropositivity to Ehrlichia risticii, and to determine evidence for arthropod- or helminth-mediated transmission of E risticii to horses. Methods: Cross-sectional study. Methods: A random sample of 3,000 of the 39,000 equine operations in New York state was selected, and 2,587 horses from 511 operations were tested. Methods: Blood samples were collected from horses and tested for seropositivity, using the indirect fl...
Use of the dry chemistry “Reflotron” blood analyzer under outdoor-field conditions in veterinary medicine. Lopes-Pereira CM, Harun M, Schmidtova D, Timane I, Mabasso M, Otto F, Bogin E.Adapting the concept of "bed-side" patient analysis, the Boehringer-Mannheim Reflotron was evaluated for its possible use in veterinary medicine under outdoor-field conditions. Horse blood was analysed with the Cobas Bio analyzer, and indoor and outdoor analyses were also performed with the Reflotron. All values showed close agreement with no significant differences. Good correlation coefficients (r values around 0.9000) were also seen between all methods used. The Reflotron was operated under outdoor-field conditions by using, whenever available, an on-farm electricity source, or a gas operat...
Structural investigation of the complexation properties between horse spleen apoferritin and metalloporphyrins.
Proteins    March 1, 1996   Volume 24, Issue 3 314-321 doi: 10.1002/(SICI)1097-0134(199603)24:3<314::AID-PROT4>3.0.CO;2-G
Michaux MA, Dautant A, Gallois B, Granier T, d'Estaintot BL, Précigoux G.Crystallographic studies of L-chain horse spleen apoferritin (HSF) co-crystallized with Pt-hematoporphyrin IX and Snprotoporphyrin IX have brought significant new insights into structure-function relationships in ferritins. Interactions of HSF with porphyrins are discussed. Structural results show that the nestling properties into HSF are dependent on the porphyrin moiety. (Only protoporphyrin IX significantly interacts with the protein, whereas hematoporphyrin IX does not.) These studies additionally point out the L-chain HSF ability to demetalate metalloporphyrins, a result which is of impor...
[Current concepts and implications for future research on Rhodococcus equi].
Nihon saikingaku zasshi. Japanese journal of bacteriology    February 1, 1996   Volume 51, Issue 2 485-496 doi: 10.3412/jsb.51.485
Takai S.No abstract available
Effects of posture and accumulated airway secretions on tracheal mucociliary transport in the horse.
Australian veterinary journal    February 1, 1996   Volume 73, Issue 2 45-49 doi: 10.1111/j.1751-0813.1996.tb09963.x
Raidal SL, Love DN, Bailey GD.Tracheal mucociliary clearance was determined in horses by measuring the rostrad transport of the radiopharmaceutical 99mtechnetium-sulphur colloid following deposition on the tracheal epithelium by intratracheal injection. The effects of head position (head elevated to normal standing position vs head lowered) and of accumulated purulent secretions on tracheal mucociliary clearance were evaluated for the first time in the horse. In normal horses tracheal mucociliary clearance was greatly accelerated by lowering the head so that the cranial trachea was lower than the caudal trachea. Horses con...
[Spectrum of species and incidence of endoparasites in foals and their mother mares from breeding farms with and without anthelmintic prophylaxis in upper Bavaria].
Tierarztliche Praxis    February 1, 1996   Volume 24, Issue 1 48-54 
Beelitz P, Göbel E, Gothe R.In this epidemiological study 37 foals and mares were included, which have been coproscopically examined in regular intervals over a period lasting up to 13 months. The animals derived from nine breeding farms. In three of these farms no anthelmintics were used before this investigation, whereas in six farms at least three years before regular prophylactic treatments with anthelmintics have been carried out. This investigation revealed no differences in the species spectrum of endoparasites as well as in the incidence of infections as regards to the breeding farms with and without anthelmintic...
Lymph pathways associated with three types of follicle structure found in gut-associated lymphoid tissue of horse ileum.
Anatomy and embryology    February 1, 1996   Volume 193, Issue 2 175-179 doi: 10.1007/BF00214708
Lowden S, Heath T.In the horse ileum, lacteals in the villi are continuous with prelymphatic intercellular channels and a plexus of lymphatic sinuses in the lamina propria that encircle the domes of the follicle/dome structures and proprial follicles. These sinuses may act as the major entry site for many of the lymphocytes migrating from gut-associated lymphoid tissue via the lymphatic system. Vessels from this plexus penetrate the muscularis mucosae and lymph flows into lymphatic vessels within the interfollicular tissue between the follicles of both follicle/dome structures and lymphoglandular complexes (LGC...
Drug use and misuse: frontiers between biological science, bureaucracy and clinical pragmatism.
Equine veterinary journal    January 1, 1996   Volume 28, Issue 1 7-8 doi: 10.1111/j.2042-3306.1996.tb01581.x
Rossdale PD.No abstract available
Control of Karoo paralysis ticks through vegetation management.
Medical and veterinary entomology    January 1, 1996   Volume 10, Issue 1 39-43 doi: 10.1111/j.1365-2915.1996.tb00080.x
Fourie LJ, Kok DJ, Krugel L, Snyman A, Van Der Lingen F.Karoo paralysis, caused by feeding Ixodes rubicundus females, is a major disease of small stock in South Africa. Control methods currently practised are almost exclusively chemical based. To limit overdependance on chemicals, vegetation management was investigated as a possible method for control, to be incorporated in an integrated tick management system. Laboratory and field experiments were conducted to determine, firstly, the extent of vertical migration and survival of ticks on long and short copper rods which simulated grasses as questing substrates; secondly, the infestation burdens of ...
Rapid and quantitative analysis of bilirubin in equines by high-performance liquid chromatography.
Microbios    January 1, 1996   Volume 86, Issue 346 39-47 
Mizobe M, Kondo F, Kumamoto K, Terada T, Nasu H.Rapid and quantitative analytical methods for bilirubin using high-performance liquid chromatography (HPLC) with UV detection were developed for samples from equines at a meat inspection site. Sharp HPLC peaks for bilirubins, unconjugated bilirubin (UCBL) and conjugated bilirubin (CBL), were obtained using a simple mobile phase of methanol:0.5 M Tris-HCl buffer (65:35, v/v, pH 7.4). A variable wavelength detector set at 450 nm, 0.01 AUFS and a recorder set at 4 cm/min were used for detection. Peaks for UCBL and CBL occurred at 7.1 min and 4.9 min, the lower limits of detection ranged between 0...
Recent acute and subacute mycotoxicoses recognized in France.
Veterinary research    January 1, 1996   Volume 27, Issue 4-5 383-394 
Le Bars J, Le Bars P.Successful investigation and prevention of mycotoxic problems requires close collaboration between scientists from several disciplines ranging from agronomists and technologists required during production of food and feeds, to toxicologists and pathologists examining the effects of mycotoxins on animals and man. Zootoxic metabolites following fungal infection result from four general mechanisms: (i) secondary fungal metabolism (mycotoxins, eg, aflatoxins); (ii) bioconversion of vegetal compounds (eg, dicoumarol); (iii) plant reactions (phytoalexins, eg, coumestrol); and (iv) plant-fungus assoc...
Outbreak of Severe Respiratory Disease in Humans and Horses Due to a Previously Unrecognized Paramyxovirus.
Journal of travel medicine    December 1, 1995   Volume 2, Issue 4 275 doi: 10.1111/j.1708-8305.1995.tb00679.x
Selvey L, Sheridan J.No abstract available
The use of laboratory tests in equine practice.
The Veterinary clinics of North America. Equine practice    December 1, 1995   Volume 11, Issue 3 345-350 doi: 10.1016/s0749-0739(17)30305-x
Messer NT IV.No abstract available