{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T10:27:35Z","timestamp":1785234455996,"version":"3.55.0"},"reference-count":28,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:00:00Z","timestamp":1777593600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Vet. Sci."],"abstract":"\n Objective<\/jats:title>\n To identify the ocular microbiota of healthy dogs and with corneal ulcers, and the sensitivity-resistance of the isolated bacteria to antibiotics.<\/jats:p>\n <\/jats:sec>\n \n Animal studied<\/jats:title>\n 60 dogs were included. 30 of them free of clinical or ophthalmic disease; 30 diagnosed with a corneal ulcer.<\/jats:p>\n <\/jats:sec>\n \n Procedures<\/jats:title>\n Samples for microbiological analysis were obtained by a sterile swab passed over the conjunctival sac and the cornea. The samples were inoculated on agars and identified by microscopy, Gram stain, and biochemical tests. Sensidiscs of sulfa, ciprofloxacin, tobramycin, tetracycline and gentamicin were included for the antibiogram.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n 67% of the patients with corneal ulcers showed bacterial growth; 83% were Gram-positive bacteria.\n Staphylococcus<\/jats:italic>\n spp.,\n Streptococcus<\/jats:italic>\n spp., and\n Pseudomonas<\/jats:italic>\n spp. were the most frequently isolated bacteria and were mainly sensitive to ciprofloxacin, followed by tobramycin, sulfa drugs, gentamicin, and tetracycline. 33% of the healthy patients showed bacterial growth with predominance of Gram-positive bacteria. The bacterial genera mainly isolated were\n Staphylococcus<\/jats:italic>\n spp.,\n Bacillus<\/jats:italic>\n spp. and\n Acinetobacter<\/jats:italic>\n spp., which in turn were sensitive to ciprofloxacin, sulfa drugs and gentamicin, and resistant to tetracycline and tobramycin.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n \n Staphylococcus<\/jats:italic>\n was the most frequently isolated genus in healthy and dogs with corneal ulcers. In corneal ulcers,\n Streptococcus<\/jats:italic>\n and\n Pseudomonas<\/jats:italic>\n also predominate. The bacteria isolated in dogs with and without corneal ulcers were mainly sensitive to ciprofloxacin, hence its use is recommended in these patients, and the use of tetracycline and gentamicin is advised against due to their significant resistance results.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.3389\/fvets.2026.1755813","type":"journal-article","created":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T11:29:52Z","timestamp":1777634992000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Identification and antimicrobial susceptibility of bacteria isolated from corneal ulcers and healthy eyes of canines in Ibagu\u00e9-Tolima, Colombia"],"prefix":"10.3389","volume":"13","author":[{"given":"Dunia Yisela Trujillo","family":"Piso","sequence":"first","affiliation":[{"name":"Faculty of Veterinary Medicine and Animal Sciences, Impronta Group of Research, Cooperative University of Colombia, Ibagu\u00e9","place":["Tolima, Colombia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yeli Camila","family":"Van-Arcken Aguilar","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine and Animal Sciences, Impronta Group of Research, Cooperative University of Colombia, Ibagu\u00e9","place":["Tolima, Colombia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M\u00f3nica Yamile Padilla","family":"Barreto","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine and Animal Sciences, Impronta Group of Research, Cooperative University of Colombia, Ibagu\u00e9","place":["Tolima, Colombia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda del Pilar S\u00e1nchez","family":"Bonilla","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine and Animal Sciences, Impronta Group of Research, Cooperative University of Colombia, Ibagu\u00e9","place":["Tolima, 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