The reduced prevalence of macrolide resistance in Mycoplasma pneumoniae clinical isolates from pediatric patients in Beijing in 2016
bioRxiv(2018)
摘要
Older children especially from seven to thirteen years old are more prone to develop Mycoplasma pneumoniae(MP) infection; in winter children are more susceptible to infect with MP. In Beijing, China in 2016 the rates of macrolide resistance of MP were 69.48% (in total children), 61.59% (in outpatients) and 79.28% (in hospitalized patients), respectively. All the macrolide resistant isolates harbored A2063G or A2064G mutation in the 23S rRNA gene. Seven isolates showed a mixed infection. Susceptibility results showed that 73 isolates with the A2063G mutation demonstrated different levels resistance to erythromycin (MIC=8 tou003e256μg/ml), azithromycin (MIC=8 tou003e64μg/ml) and josamycin (MIC=2 to 8μg/ml). No cross-resistance was observed in the in the antibiotics of levofloxacin and tetracycline against MP.
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