to determine if beta-lactamase produced by hemophilus influenzae and branhamella catarrhalis have similar importance in mixed infections , a thread infection model in mice was used to evaluate the capacity of beta-lactamase produced by s. aureus , b. catarrhalis , or h. influenzae to hydrolyze ampicillin in a mixed infection with streptococcus pneumoniae in mice .
C0009450
infection
C0275524
mixed infection