Why do some COVID-19 patients experience symptoms months later?

In this Thursday, May 14, 2020 photo, a junior doctor holds his stethoscope during a patient visit. (Hannah McKay/Pool Photo via AP) In this Thursday, May 14, 2020 photo, a junior doctor holds his stethoscope during a patient visit. (Hannah McKay/Pool Photo via AP)

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Ukraine says battle for Bakhmut is 'stabilizing'

The top commander of Ukraine's military said Saturday that his forces are pushing back against Russian troops in the long and grinding battle for the town of Bakhmut, and British military intelligence says Russia appears to be moving to a defensive strategy in eastern Ukraine.