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The aim of this study was to determine the bacterial etiologic agents of ear infections and their antibiogram among patients of all age groups visited to Ayub Medical complex Abbottad. This cross sectional study was designed at Microbiology laboratory, Ayub Medical complex Abbottabad from February 2019 to July 2019. Patients of any age and both sexes were involved. For the culturing of bacteria and susceptibility testing swabs from infected ears were analyzed. Anitbiogram was perform according to CLSI standards. A total of 100 samples were collected. Of them, (55 %) were males and (45 %) female patients. Overall, (72 %) samples were positive in which (76 %) were male. Highest number of isolates 20 (76 %) were identified in patients from 1-10 years of age. The predominant bacteria were P. aeruginosa 32 (44.4 %), S. aureus 15 (20.83 %) and K.pneumoniae 8 (11.11 %). Gram positive bacterial isolates exhibited high level of resistance to Tetracycline, Penicillin, Oxacillin and Vancomycin respectively while Cotrimoxazole, Clindamycin, Ciprofloxacin, Linezolid, Erythromycin and chloramphenicol were effective drugs. Gram negative bacteria were resistant to Amoxicillin and Ampicillin. However, Amikacin, Pipra-tazobactum, Ceftriaxone, Gentamicin, Ciprofloxacin, Chloramphenicol and Cotrimoxazole were effective against most of these isolates. Bacteriological Ear infection is reasonably common in Abbottabad and the most pathogenic bacteria associated with infection are P.seudomonas S.aureus and K.pneumoniae which are resistant to Beta Lactam antibiotics. Therefore, for the cure of ear infection antibiogram is vital.
Keywords: Ear infection; Pathogenic bacteria; P.seudomonas; S.aureus; Antibiogram