since cpdx demonstrates very powerful antimicrobial actions against such gram-negative bacilli as escherichia coli , salmonella sp. , klebsiella pneumoniae and serratia sp. , such gram-positive cocci as streptococcus pyogenes and streptococcus pneumoniae , and beta-lactamase producing branhamella catarrhalis and haemophilus influenzae , this drug was thought to be useful for the treatment of pediatric infectious diseases when main causative bacteria in the field of pediatrics were taken into account .
C0597979
beta-lactamase
C0004611
bacteria