Antimicrobial drug resistance rates for Mycoplasma pneumoniae was determined in clinical specimens and isolates obtained during 2011-2012 in Ontario, Canada. Of 91 M. pneumoniae drug-resistant specimens, 11 (12.1%) carried nucleotide mutations associated with macrolide resistance in the 23S rRNA gene. None of the M. pneumoniae specimens were resistant to fluoroquinolones or tetracyclines.
Keywords: Canada; Mycoplasma pneumoniae; Ontario; antibiotic resistance; antimicrobial resistance; bacteria; community-acquired pneumonia; macrolide resistance; macrolides.