Study of Bacterial Isolates in Eye Infection Cases of Dogs

One hundred dogs of different breeds, sexes, and ages with various eye infections were examined over a year. Bacteriological examination of conjunctival swabs taken from both eyes revealed that 38 dogs, 38%, were positive for pathogenic microorganisms. Coagulase-positive Staphylococcus aureus was the most predominant 86.4% among isolates. Other microorganisms isolated were Beta-Streptococci 9.1%, followed by Pseudomonas aeruginosa 4.5%. Susceptibility of Staphylococcus aureus to antibiotics indicated that they were susceptible to most antibiotics used but less sensitive to Erythromycin and Ampicillin. Infected dogs showed excellent response to gentamycin (drops and ointment) treatment. A higher incidence of infection was significantly 0.05, revealed in females at 57.9%, than in males at 42.1%. The age group of four years in females and two years in males were highly susceptible to infection. The mixed terrier was the most common breed examined at 38%, followed by Shihtzu at 16 %. The maltase breed was susceptible to Pseudomonse aeruginosa.