Kariyapperuma, K.R.S.N.; Banujan, K.; Kumara, B.T.G.S; Wijeratne, P.M.A.K.
(Sabaragamuwa University of Sri Lanka, 2022-04-06)
The worldwide pandemic of severe acute respiratory syndrome coronavirus 2 (SARSCoV-
2) has afflicted the majority of the world’s population. Thanks to the invention of
COVID-19 vaccines, the governments worldwide have ...