Funding for this research was provided by:
the Special Key Project of Biosafety Technologies for the National Major Research & Development Program of China (2017YFC1200803)
Received: 17 March 2019
Accepted: 9 October 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: No ethical approval was obtained for using the clinical samples since they were collected during routine bacteriologic analyses in public hospitals. All data were anonymously analyzed.
: The authors have no conflicts of interest to declare.