A Review of Reproductive Number of Pandemic Covid-19: Comparative Analysis of R Value

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is one of the most devastating outbreaks witnessed in the last 100 years causing a global health concern.At the beginning of a COVID-19 infection caused by the novel coronavirus (SARS-CoV-2), there is a period of time known as the latency period. In order to epidemic progression many scientists have concentrated on calculating the average number of secondary cases caused by a primary case in the susceptible population, which is referred as basic reproductive number, Ro. In this paper, we have studied the effect of basic reproductive number on the outbreak situation as well as comprehended the transmission pattern of COVID-19 globally. We have analyzed several data of basic reproductive numbers to discuss and finally, capable of exhibiting the prediction of this disease. Finally, comparison of reproductive numbers for several countries are represented graphically for better understanding the present outbreak situation of pandemic, COVID-19.