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Introduction Moraxella catarrhalis is a Gram-negative, aerobic bacterium that belongs to the Moraxellaceae family. It is a non-motile, non-spore-forming bacterium, and it is typically found in the upper respiratory tract of humans as a commensal organism. Though generally considered a commensal, M. catarrhalis can also …
Introduction Sputum culture and sensitivity is a medical laboratory test used to identify and determine the susceptibility of bacteria or other microorganisms present in a patient’s sputum, a mixture of saliva and mucus coughed up from the respiratory tract. This diagnostic test is crucial in …
Introduction of Butyrate Disk Test Butyrate disk test is useful to differentiate Moraxella catarrhalis from Neisseria species like Neisseria gonorrhoeae, Neisseria lactamica. Principle of Butyrate Disk Test The butyrate disk test is a rapid test for the detection of the enzyme butyrate esterase. Bromochloro-indolyl butyrate (IB) is the substrate. Hydrolysis …