BACKGROUND OF THE STUDY
The COVID-19 epidemic has caused the greatest disruption to education systems in human history, affecting practically every student worldwide, particularly those in secondary schools. More than 94% of the world's student popu...
Background to the study
SARS-CoV-2 are positive-sense, single stranded RNA viruses and its diameters is 60 nm to140 nm with spike like projection on it’s around which giving it a crown like appearance. Their viral is RNA genomic and their ran...