title: beta-Lactamase activity in a strain of Salmonella typhi.
mesh_terms: D010406:Penicillins / Q000378:metabolism; D012485:Salmonella typhi / Q000201:enzymology*; D001618:beta-Lactamases / Q000378:metabolism*
chemical_list: D010406:Penicillins; D001618:beta-Lactamases