Salient Features There is sharp increase in number of Covid cases in USA (53% ) and mobility change is 48% On 27th July there were more than one lac new cases on a single day Vaccination drive in US started in November 2020 and till date 50% of US population is fully vaccinated Majority of US stated lifted `Mask Mandate’ from May 2021 leading to free movement and mobility (change 48%) Now the US is again mandating mask and other restrictions to curb rising cases Rise in rate of cases was also related to percentage of population vaccinated. For example stated like Missouri, Mississippi, Arizona, Florida where vaccination rate is low showed higher rate of new cases CDC announce on 13th May that vaccinated individuals could "resume activities without wearing a mask or physically distancing On 27th July announced that vaccinated individuals in areas of substantial or high transmission risk…