These three types can be distinguished, at least for the present, by the number and types of resistances harbored in addition to beta-lactams: haMRSA strains are resistant to 3 or more of the following: erythromycin, clindamycin, rifampicin, ciprofloxacin, gentamicin, tetracycline, trimethoprim-sulfamethoxazole or chloramphenicol (414).