Avijit Das1, Yeasmin Nahar2, Mosammat Suchana Nazrin3
1. Associate Professor, Department of Microbiology, North East Medical College, Sylhet
2. Assistant Professor, Department of Microbiology, North East Medical College, Sylhet
3. Associate Professor, Department of Pathology, North East Medical College, Sylhet
Abstract
This cross-sectional study was conducted with the sputum samples of 100 patients of respiratory tract infections attending different out-patient departments of North East Medical College Hospital to determine the bacterial agents and their current antibiotic susceptibility pattern in between January 2013 and December 2015 Patients’ age was ranged from 14 to 80 years Laboratory procedure was done in the Microbiology department of North East Medical College Hospital. Sixty six (66) out of hundred (100) sputum samples had shown the growth of different bacteria. Streptococcus pneumoniae was found predominant (54.55%) followed by Streptococcus pyogenes (28.78%), Escherichia coli (13.63%), Staphylococcus aureus (1.52%) and Pseudomonas aeruginosa (1.52%). Most of the isolates were sensitive to Ciprofloxacin, Ceftriaxone, Cefixime and Amoxyclav. A few were sensitive to Co trimaxazole, Meropenem and Imipenem. No bacterial isolate was found resistant to all antibiotics used in the antibiotic panel. Though the obtained study result revealed that, some of the antibiotics used to treat respiratory tract infections are still effective but antibiotic resistance often leads to therapeutic failure of empirical therapy. To minimize this problem antibiotic should be used rationally and susceptibility testing should be encouraged on routine basis.
Keywords: Respiratory tract infections, sputum, bacterial isolates, antibiotic susceptibility.