Received: 9 May 2019
Accepted: 21 January 2020
First Online: 30 January 2020
Ethics approval and consent to participate
: This report was approved by the Clinical Research and Ethics Committee of the First Affiliated Hospital of Sun Yat-sen University. Written informed consent was obtained from each participant. All the bacterial isolates in this study were isolated prior to this study.
: Not applicable since there are no details on individuals reported within the manuscript.
: The authors declare that they have no competing interests.