Coronavirus disease 2019 or Covid-19. which is also called acute respiratory disease NCAV-2019 or commonly called corona. is a respiratory disease caused by acute respiratory syndrome coronavirus-2. Forecasting the number of new cases and deaths during todays can be a useful step in predicting the costs and facilities needed in the future. https://www.roamingfreesims.com/product-category/aa-ni-cd-and-ni-mh-batteries-and-battery-packs/