Received: 12 June 2020
Accepted: 10 November 2020
First Online: 19 November 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Research Ethics panel at the Department of Bio Science, Vavuniya Campus, University of Jaffna, Sri Lanka. Authors declare that the experiments conducted are complied with the standard animal care guidelines and the current laws of Sri Lanka.
: Not applicable.
: The authors declare that they have no competing interests.