Antibiotics Susceptibility of Staphylococcus aureus isolates from the Lecture Theatres of Faculty of Pharmaceutical Sciences, Ahmadu Bello University, Zaria
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In recent time Staphylococcus aureus has developed resistance to commonly used antibiotics making its infections difficult to treat. The evaluation of microorganisms present in indoor environments especially lecture rooms is very critical considering the huge number of students involved. This study was designed to isolate Staphylococcus aureus from the lecture theatres of faculty of Pharmaceutical Sciences, Ahmadu Bello University and to determine their antibiotics susceptibility. Samples were collected from the floors, tables, door and indoor air of the theatres and were identified using standard microbiological techniques. Kirby Bauer disc diffusion method was used for antibiotics susceptibility testing. Fifty seven (57) samples were collected of which 26 (45.6 %) were S. aureus, 17 (29.8 %) were coagulase negative Staphylococci and 14 (24.6 %) were Streptococci spp. All the S. aureus isolates were resistant to amoxicillin (100 %), and were found to have susceptibility of 73.1 %, 69.2 %, 26.9 %, 23.1 % and 19.2% to chloramphenicol, gentamicin, tetracycline, trimethoprim and erythromycin respectively. Multidrug resistance observed was 73.1 % while pandrug resistance was 3.5 %. In conclusion there was a high prevalence of multidrug resistant S. aureus in the lecture theatres of Faculty of Pharmaceutical Sciences, Ahmadu Bello University.
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