Before revision:  Our objective in this report is to enunciate the differences between these policies and to suggest modified policies,for post lock-down , that may allow management of Covid-19 ] , while at the same time enabling some degree of reducedsocial and economic activity.
After revision:  Our objective in this report is to enunciate the differences between these policies and to suggest modified policies,for post lock-down intervals with regular period are suggested as a COVID-19 exit strategy from the widely adopted policy of total lock-down. Many proposed exit strategies have risks and uncertainties which could lead to a second wave of infection ] , while at the same time enabling some degree of reducedsocial and economic activity.