Progress of Moraxella Catarrhalis / 国际儿科学杂志

ABSTRACT

Moraxella Catarrhalis emerged as the third cause of respiratory tract infection in children.Over 90% of the Moraxella Catarrhalis strains isolated currently produced by β-lactamases positive.Moraxella Catarrhalis resist to Ampicillin because of the β-lactamases,such as the BRO-1 type,BRO-2 type and BRO-3 type.The BRO genes appeared to be located on the chromosome and be coded.Twenty-one new mutations were found in the putative promoter region of the BRO genes.