title: Isolation and molecular characterization of beta-lactamase-producing Haemophilus parainfluenzae from the genital tract.
abstract: Three Haemophilus parainfluenzae strains isolated from the urogenital tract harbored a beta-lactamase-coding 3.2-megadalton plasmid identical, by restriction endonuclease digestion and hybridization with radioactive and biotin-labeled probes specific for the TEM-1 beta-lactamase and TnA sequences, to the 3.2-megadalton "African-type" plasmid found in Neisseria gonorrhoeae.
mesh_terms: D004269:DNA, Bacterial / Q000032:analysis; D004587:Electrophoresis, Agar Gel; D005835:Genitalia / Q000382:microbiology*; D006190:Haemophilus / Q000201:enzymology*; D006801:Humans; D009693:Nucleic Acid Hybridization; D010957:Plasmids; D001618:beta-Lactamases / Q000096:biosynthesis* / Q000302:isolation & purification
chemical_list: D004269:DNA, Bacterial; D001618:beta-Lactamases