Patent ID: 7468256

Claim:
A method of identifying Moraxella catarrhalis lipooligosaccharide (LOS) serotypes in a biological sample comprising the step of: contacting a first aliquot from the sample with monoclonal antibody 4G5 which recognizes Moraxella catarrhalis serotypes A, B and C, wherein the 4G5 monoclonal antibody is produced by a cell culture having deposit designation PTA-8544, and contacting at least a second aliquot of the sample with a monoclonal antibody that is specific for the B serotype, wherein detecting binding of the 4G5 monoclonal antibody and the monoclonal antibody that is specific for the B serotype is indicative of the Moraxella catarrhalis LOS serotype in the sample as B serotype, and wherein detecting binding of the 4G5 monoclonal antibody but not detecting binding of the monoclonal antibody that is specific for B serotype is indicative of the Moraxella catarrhalis LOS serotype in the sample as A or C serotype.