Funding for this research was provided by:
dirección de investigación, universidad peruana de ciencias aplicadas (A-072-2020)
Received: 23 July 2021
Accepted: 26 October 2021
First Online: 10 November 2021
: This study was approved by the Research Ethics Board of the Hospital Docente Regional de Cajamarca, Peru. The samples were obtained as part of the public health surveillance system for which they were dispensed with informed consent according to the Ethical Guidelines of the World Health Organization.
: Not applicable.
: On behalf of all authors, the corresponding author states that there are no conflicts of interest or funding related to this study.