P1 gene of Mycoplasma pneumoniae isolated from 2016 to 2019 and relationship between genotyping and macrolide resistance in Hokkaido, Japan
Nobuhisa Ishiguro, Rikako Sato, Hídeaki Kikuta, Masanori Nakanishi, Hayato Aoyagi, Toshihiko Mori, Naoko Nagano, Yuichi Tabata, Kyosuke Hazama, Mutsuko Konno, Tatsuru Yamanaka, Katsumi Azuma, Hiroshi Tanaka, Mitsuo Narita, Keisuke Morita, Yasuhisa Odagawa, Akihito Ishizaka, Akira Tsuchida, Satoshi Sasaki, Atsuko Horino, Tsuyoshi Kenri, Takehiro Togashi, Atsushi Manabe
Abstract
We characterized 515 Mycoplasma pneumoniae specimens in Hokkaido. In 2013 and 2014, the p1 gene type 1 strain, mostly macrolide-resistant, was dominant and the prevalence of macrolide resistance was over 50 %. After 2017, the p1 gene type 2 lineage, mostly macrolide-sensitive, increased and the prevalence of macrolide resistance became 31.0 % in 2017, 5.3 % in 2018 and 16.3 % in 2019.