June 30
The governor of Texas paused the state's reopening in late June as cases spiked, pushing intensive-care wards to full capacity.
July 11
Trump wore a mask for the first time in a public setting during the visit to Walter Reed. The institution requires mask-wearing as a means of preventing spread of Covid-19, but the president has not always abided by such requirements.
July 25
Postponed since March, Major League Baseball's season resumed in empty ballparks at the end of July.
August 7
The Sturgis Motorcycle Rally may have caused more than 250,000 new coronavirus cases, according to an economic study focused on the public health costs of "superspreading" events.
The 10-day rally attracted more than 400,000 people.
