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Moraxella catarrhalis - a rediscovered pathogen

Authors:Prashanth HV , Dominic Saldanha RM, Shalini Shenoy
Int J Biol Med Res. 2011; 2(4): 979- 981  |  PDF File

Abstract

Aims: The purpose of our study was to evaluate the significance of Moraxella catarrhalis as a pathogen in causing lower respiratory tract infection. Methods: Patients suspected to be suffering from lower respiratory tract infection were considered Only sputum samples of high bacteriological quality were analysed. All specimens were cultured. Identification was done by standard microbiological methods. Certain criteria were considered for determining pathogenic significance of an Moraxella catarrhalis[6]. Results: A total of 2430 sputum samples were screened 1550 were further examined as they were of high bacteriological quality. Moraxella catarrhalis isolated were categarised as significant(71), probably significant(34), indeterminate and non significant(5). The pathogens associated with Moraxella catarrhalis were Streptococcus pneumoniae, Hemophilus influenza, Klebsiella spp. and Pseudomonas spp It was sensitive to Tetracycline(100%), Amoxyclav(100%) and pencillin(24%). Conclusion: M. catarrhalis has finally gained respect as a pathogen thanks to the many recent reports of its causal role in a variety of infections Our study shows that when microbiological and clinical criteria are met, Moraxella catarrhalis when isolated should be considered as a pathogen causing lower respiratory tract infections.