Frequency in the united states of non-β-lactamase-producing strains of neisseria gonorrhoeae possessing the 24.5-mdal conjugative plasmid

We characterized 475 non-β-lactamase-producing gonococcal isolates from five U.S. cities by auxotype, serovar, and plasmid content to determine the frequency of isolates with the 24.5-Mdal gonococcal conjugative plasmid