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Pathogenic bacteria and fungi associated with extraocular disease in the horse.
Abstract: In 123 cases of external ocular disease in the horse, pathogenic microorganisms isolated with greatest frequency were Streptococcus sp (43.9%), Staphylococcus sp (24.2%), and Pseudomonas sp (13.8%). Fungi were isolated in 4.8% of the cases. In vitro testing showed that most of the Streptococcus sp isolants were sensitive to ampicillin, cephalothin, and carbenicillin. Most of the Staphylococcus sp isolants were sensitive to gentamicin, cephalothin, and bacitracin. Most of the Pseudomonas sp isolants were sensitive to polymyxin B and gentamicin.
Publication Date: 1983-02-01 PubMed ID: 6826446 The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
This research explored the microorganisms most frequently associated with external eye diseases in horses, identifying Streptococcus, Staphylococcus, and Pseudomonas species as the most common. The study also assessed the bacterial sensitivity to various antibiotics.
Understanding the Study
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- The study focused on examining the pathogenic bacteria and fungi implicated in 123 cases of external ocular disease in horses. External ocular diseases refer to ailments that affect the structures around the eyes.
- The most frequently isolated microorganisms were species of Streptococcus (43.9%), Staphylococcus (24.2%), and Pseudomonas (13.8%). Fungi were isolated in 4.8% of the cases indicating that bacterial infections were much more common.
In Vitro Testing and Antibiotic Sensitivity
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- The second aspect of this research involved testing how sensitive these different bacteria were to various antibiotics. This sensitivity analysis is crucial in the treatment of bacterial infections, as it can guide veterinarians in their selection of the most appropriate and effective antibiotic for treatment.
- Most Streptococcus species were found to be sensitive to ampicillin, cephalothin, and carbenicillin. This result implies that these antibiotics could potentially be effective treatments for horses with Streptococcus-related external ocular diseases.
- Staphylococcus species were predominantly sensitive to gentamicin, cephalothin, and bacitracin. Consequently, these antibiotics could be used as a viable treatment option for horses diagnosed with external ocular diseases caused by Staphylococcus.
- The Pseudomonas species demonstrated sensitivity towards polymyxin B and gentamicin. Therefore, these antibiotics could be considered for treating Pseudomonas-related external ocular diseases in horses.
Implication of the Study
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- Understanding the pathogens involved in external ocular diseases in horses, as well as the antibiotics these pathogens are sensitive to, is essential in developing effective treatment strategies.
- This research contributes to the information available on managing eye infections in horses thus providing better care and prevention.
Cite This Article
APA
McLaughlin SA, Brightman AH, Helper LC, Manning JP, Tomes JE.
(1983).
Pathogenic bacteria and fungi associated with extraocular disease in the horse.
J Am Vet Med Assoc, 182(3), 241-242.
Publication
Researcher Affiliations
MeSH Terms
- Animals
- Anti-Bacterial Agents
- Anti-Infective Agents / pharmacology
- Bacillus / drug effects
- Bacteria / isolation & purification
- Conjunctiva / microbiology
- Cornea / microbiology
- Drug Resistance, Microbial
- Eye Diseases / microbiology
- Eye Diseases / veterinary
- Female
- Fungi / isolation & purification
- Horse Diseases / microbiology
- Horses
- Male
- Pseudomonas / drug effects
- Species Specificity
- Staphylococcus / drug effects
- Streptococcus / drug effects
Citations
This article has been cited 7 times.- Zak A, Siwinska N, Slowikowska M, Borowicz H, Ploneczka-Janeczko K, Chorbinski P, Niedzwiedz A. Conjunctival aerobic bacterial flora in healthy Silesian foals and adult horses in Poland. BMC Vet Res 2018 Aug 31;14(1):261.
- Hidaka S, Kobayashi M, Ando K, Fujii Y. Efficacy and safety of lomefloxacin on bacterial extraocular disease in the horse. J Vet Med Sci 2015 Jul;77(7):829-35.
- Reed Z, Thomasy SM, Good KL, Maggs DJ, Magdesian KG, Pusterla N, Hollingsworth SR. Equine keratomycoses in California from 1987 to 2010 (47 cases). Equine Vet J 2013 May;45(3):361-6.
- Cullen CL, Grahn BH. Diagnostic ophthalmology. Corneal ulcer with severe secondary anterior uveitis in a pony. Can Vet J 2000 Nov;41(11):887-9.
- Beaman BL, Beaman L. Nocardia species: host-parasite relationships. Clin Microbiol Rev 1994 Apr;7(2):213-64.
- Beaman BL, Sugar AM. Nocardia in naturally acquired and experimental infections in animals. J Hyg (Lond) 1983 Dec;91(3):393-419.
- Aho R, Tala M, Kivalo M. Mycotic keratitis in a horse caused by Aspergillus fumigatus. The first reported case in Finland. Acta Vet Scand 1991;32(3):373-6.
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