title: Detection of beta lactamase activity of Haemophilus influenzae.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D006193:Haemophilus influenzae / Q000187:drug effects / Q000201:enzymology*; D010403:Penicillin Resistance; D010405:Penicillinase / Q000378:metabolism*
chemical_list: D000667:Ampicillin; D010405:Penicillinase