Results:Antibacterial spectrum of sec-ond generation macrolides was broad er.Their antibacterial potency against aerobe and anaerobe were stronger than that of erythromycin in first genera tion.

• 结果:第2代大环内酯类抗生素的抗菌谱更趋广泛,对需氧菌和厌氧菌的抗菌能力较第1代的红霉素均有所增强。