States struggle with contact tracing, Pence isn't taking hydroxychloroquine

Here are the latest coronavirus updates from around the world.
COVID-19 Testing Begins in Historic Black Neighborhoods in Altamonte Springs, US
Health workers test people in cars for COVID-19 at a mobile testing site at the Apostolic Church of Christ in Altamonte Springs, Fla. on April 21, 2020.Paul Hennessy / Barcroft Media via Getty Images file

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States across the country are reopening their economies, but they’re struggling with what public health officials have called a key component aimed at preventing the spread of coronavirus — contact tracing.

President Donald Trump might be taking hydroxychloroquine as a prophylactic against COVID-19, but that doesn’t mean his vice president is.

"My physician hasn’t recommended that, but I wouldn’t hesitate to take the counsel of my doctor," Mike Pence told Fox News on Tuesday.

Walter Barton, 64, was put to death in Missouri on Tuesday. His was the first execution in the United States since the World Health Organization declared the coronavirus outbreak a global pandemic.

Here's what to know about the coronavirus, plus a timeline of the most critical moments:

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This live coverage has now ended. Continue to May 20 coronavirus news.

Essential workers balance low pay, COVID-19 worries while staying open for America