Aerococcus viridans isolated from uterine infection in a dromedary camel

Culture of uterine pus samples collected from an eight-year-old female dromedary camel on Brain-Heart Infusion Agar supplemented with potassium tellurite (0.1%) resulted in the growth of small, round, convex, pale yellow transparent colonies after 72 hours. Based on colony morphology, appearance in Gram staining, and biochemical characteristics, the organism was identified as Aerococcus viridans. BLAST of partial 16S rDNA gene sequences further validated this bacterial identification. The bacterial isolate was sensitive to tobramycin, enrofloxacin, erythromycin, streptomycin, and ciprofloxacin, but resistant to methicillin, oxacillin, and amoxicillin and sulbactam combination. Treatment with antibiotics, anti-inflammatory drugs, and multivitamin supplements did not yield a response, and the animal died after 3 months. The uterus was found dilated and filled with dark-colored, thick muco-purulent fluid. Isolation of pure culture of A. viridans indicated that the organism may play a significant role in the pathogenesis of uterine infections in camels.