Bacterial Isolates from Otitis Media Infections and their Antibiograms, Hodeidah City, Yemen

Aims: This study was aimed to determine the predominant bacterial isolates and their antimicrobial susceptibility patterns from ear discharge among children and adults in Yemen.

Study Design: Prospective cross sectional.

Place and Duration of Study: Department of Medicine and Department of Microbiology, Al-Thawrah and Al-Amal hospitals, Hodeidah city, Yemen, between August 2014 to March 2015.

Methodology: Ear swabs collected from 80 patients with otitis media were inoculated into blood, chocolate, MacConkey agar plates and subjected to several bacteriological tests and analysis. Isolated bacterial pathogens were tested against thirteen antibiotics using standard bacteriologic techniques.

Results: The most common isolated bacteria were Gram positive (27=42.9%) of Staphylococcus aurues and Gram negative (21=33.3%) of Pseudomonas aeruginosa. Gentamycin, Tetracyclin, Ciprofloxacin, and Norfloxacin revealed high level of sensitivity to Staphylococcus aurues, whereas Polymyxin-B and Cotrimoxazol to Pseudomonas aeruginosa.

Conclusion: Staphylococcus aureus and Pseudomonas aeruginosa were the predominant pathogens of discharging ear. In the study area, gentamicin and tetracycline would be the drug of choice in Staphylococcus aureus isolates, while Pseudomonas aeruginosa was highly sensitive topolymyxin-B and cotrimoxazol.