Received: 23 March 2021
Accepted: 24 November 2021
First Online: 14 December 2021
: Approval for this study was given by the Institute of Primate research Institutional Scientific and Ethics Review Committee (ISERC): Ethical approval number 1SERC/T01/18, 16th March 2018. Since the information collected for this study was not of a sensitive nature and non-invasive as banked blood samples were used, the ethical approval and guidelines received from this committee was deemed sufficient to conduct the study. The study followed laid biosafety guidelines on handling and processing of biological samples.
: Not applicable.
: The authors declare that they have no competing interests.