Medical personnel from Montgomery County, Md., check patients arriving for a COVID-19 drive-in testing in Silver Spring.
Medical personnel from Montgomery County, Md., check patients arriving for a COVID-19 drive-in testing in Silver Spring, April 21, 2020.

Several countries around the world, including Germany and South Korea, and a number of U.S. states are easing their coronavirus lockdown restrictions this week. But experts caution that a number of conditions need to be in place before people leave their homes and head back out to churches, shops, restaurants and beaches.

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