Received: 7 July 2021
Accepted: 22 December 2021
First Online: 5 January 2022
: The study was conducted according to the guidelines of the Declaration of HELSINKI and approved by the Ethics and Biosafety Committee of Faculty of Biological Sciences, University of Nigeria Nsukka, Enugu Nigeria (Approval number: UNN/FBS/EC/1036; date: 27th October 2020).” Informed consent was obtained from all the study participants. They filled and signed a consent form before the collection of the blood sample.
: Not applicable.
: The authors have declared no conflict of interest.