Fernando,Narmada2025-02-032025-02-032020-09https://dr.ichemc.ac.lk/handle/123456789/39Themed Collection Page 37-38Coronavirus-induced disease 2019 (COVID 19) was first reported in Wuhan, China in December 2019 and subsequently spread worldwide. SARS-CoV2 virus is a single stranded RNA virus which is the etiological agent of this respiratory disease spread rapidlyenCOVID 19vaccine trials:Article