Funding for this research was provided by:
CONACYT (FOSSIS-2017-1-289537, FOSSIS-2012-1-181041)
INSTITUTO NACIONAL DE PEDIATRIA
Received: 25 May 2020
Accepted: 22 October 2020
First Online: 29 October 2020
Ethics approval and consent to participate
: This study was approved by the Research and Ethics Committees of the INP (IRB: 00008064, IRB: 00008065 Registry Number 066/2013). The ethics committee exempted informed consent because the isolates were obtained as part of standard patient care.
: The authors declare that they have no competing interests.