Coronavirus FAQs: Should I wear a mask? Can I get COVID-19 twice?
(PHYSorg.com Medicine & Health)

The global number of confirmed COVID-19 cases surpassed one million in early April, nearly doubling in a week. Instead of lifting or relaxing guidelines on physical distancing, we`re seeing playgrounds cordoned off and school closures extended in an attempt to flatten the curve and lessen the load on the health-care system.