Peer-reviewed veterinary case report
Bacteria found in normal and ulcer eye sacs of dogs in Beijing
By Wang, Li et al.·Published in Veterinary ophthalmology·2008·Department of Clinical Veterinary Medicine, China·View original on PubMed →
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Original publication title: Investigation of bacterial microorganisms in the conjunctival sac of clinically normal dogs and dogs with ulcerative keratitis in Beijing, China.
- Species:
- dog
Plain-English summary
A study looked at the types of bacteria found in the eyes of healthy dogs and those with corneal ulcers (a painful eye condition) in Beijing, China. It found that Staphylococcus bacteria were the most common in both healthy dogs and those with ulcers. Other bacteria like Neisseria and Corynebacterium were also present in healthy dogs, while Streptococcus and Pseudomonas were found in dogs with ulcers. The research indicated that the presence of these bacteria can vary depending on the season.
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Abstract
OBJECTIVE: To determine the bacterial microorganisms in the conjunctival sac of clinically normal dogs and dogs with ulcerative keratitis in Beijing, China. The effect of breed, sex and age of dogs and season on the presence or absence of bacteria in the conjunctival sac of clinically normal dogs was evaluated. SAMPLE POPULATION: This investigation included 240 healthy dogs, 27 dogs with unilateral corneal ulcer and one dog with bilateral corneal ulcer. PROCEDURE: The 480 samples from healthy dogs and the 29 samples from dogs with ulcerative keratitis were incubated in an aerobic and 5% CO2 environment at 37 degrees C for 48 h. Logistic regression analysis was performed. Statistical significance was set at P < 0.01. RESULTS: Of 480 normal eyes, Staphylococcus spp. were the most frequently isolated organisms (40.29%). Neisseria spp. (11.47%) were the next most frequently isolated organisms, followed by Corynebacterium spp. (9.4%). Of 29 eyes with ulcerative keratitis, Staphylococcus spp. were also the most frequently isolated bacteria (47.06%). Streptococcus spp. (12.94%) and Pseudomonas spp. (8.24%) were the second and third, respectively. Season (P = 0.002) was a significant factor influencing presence or absence of bacterial microorganisms in the conjunctival sac of normal dogs in Beijing, China, while the effects of breed (P = 0.095), sex (P = 0.588) and age (P = 0.866) of dogs were insignificant. CONCLUSION: Staphylococcus spp. were the most frequently isolated organisms, and S. intermedius predominated in the conjunctival sac of clinically normal dogs and dogs with ulcerative keratitis in Beijing, China. The likelihood of detecting bacteria depends on the season.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/18435654/