Received: 15 September 2020
Accepted: 9 March 2022
First Online: 26 March 2022
: All procedures performed involving human participants were approved by the Medical Research and Ethics Committee (Ministry of Health Malaysia, P12–837), in accordance with the ethical standards of the institutional and or national research committee, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was obtained from all the respondents in the study before blood collection.
: Not applicable.
: The authors declare that they have no competing interests.