In-Vitro Susceptibility of Mycobacterium Fortuitum and Related Strains to Cephalosporins

Abstract

Summary The sensitivity often strains of Mycobacterium fortuitum, 14 of M. abscessus, and 12 of M. borstelense to two cephalosporins was examined. M. fortuitum strains were resistant to cephalothin but sensitive to cephaloridine. The M. abscessus and M. borstelense strains were all highly resistant to cephalothin. All the M. abscessus strains and all but two strains of M. borstelense were resistant to cephaloridine. The use of cephaloridine resistance as a taxonomic aid is suggested. Cephaloridine may be useful in the treatment of infections with M. fortuitum.