| prevalence and molecular analysis of macrolide-resistant moraxella catarrhalis clinical isolates in japan, following emergence of the highly macrolide-resistant strain nsh1 in 2011. | although moraxella catarrhalis is known to be susceptible to macrolides, highly macrolide-resistant m. catarrhalis isolates have recently been reported in japan and china. in this study, we investigated the prevalence of macrolide-resistant m. catarrhalis isolates in tokyo and chiba, japan, and studied the mechanisms underlying their resistance. specifically, we determined the susceptibility of 593 clinical isolates (collected between december 2011 and may 2014) to erythromycin, using the disk d ... | 2015 | 25934551 |