CNBC Top Stories

California Gov. Gavin Newsom announced on Thursday a list of health guidelines that retailers, manufacturers and warehouses must adopt to begin offering curbside pick-up as early as Friday.

Norwegian Cruise is working "shoulder-to-shoulder" with health officials to "develop an enhanced protocol" to relaunch cruise trips, CEO Frank Del Rio said.

April's jobs report will be horrific, and with the worst job losses ever, it should provide a critical look into the economy's collapse.

"This is a tough, tough virus," said disease specialist Dr. Dale Fisher. "All it takes is one infected person and it spreads like wildfire."

"This market does have a tendency to bounce between unbridled optimism and total despair — no middle ground," the "Mad Money" host said.

Check out the companies making headlines after the bell.

Covid-19 has infected 3.7 million people globally, and killed at least 264,111 as of Thursday.

"When the CDC changed its [face mask] guidelines ... we all of a sudden saw overwhelming amounts of demand come on to our site," Etsy CEO Josh Silverman told CNBC.

The Justice Department dropped its criminal case against former national security advisor Michael Flynn, who admitted to lying to FBI agents about his conversation with a Russian diplomat.

The GOP groups are arguing that Democrats are applying a different standard to Biden, who has denied that he assaulted former Senate staffer Tara Reade in 1993, than they did to Justice Brett Kavanaugh.

Before boarding, passengers and crew members will have their temperatures checked at the gate. If someone registers a temperature of 100.4 or higher, they will be kept at the gate.

CNBC.com's MacKenzie Sigalos brings you the day's top business news headlines, and what to watch as the coronavirus pandemic continues to keep most of America on lockdown. Today, CNBC's Kate Rooney also takes a look at the widespread layoffs hitting the lucrative tech sector and start-up scene.

Michigan Gov. Gretchen Whitmer will allow the state's auto manufacturing plants, most of which have been shuttered since March due to the coronavirus pandemic, to reopen beginning Monday.

"Not only would this be a health catastrophe, but it would reverse the recovery as well," the central bank official said in a speech.

"We really think we'll benefit from that because we operate in more states than any gaming company in the world," Penn National Gaming CEO Jay Snowden told CNBC.

Uber reported first-quarter earnings on Thursday, and while the company lost $2.9 billion during the quarter, the stock rose after hours on optimistic comments from CEO Dara Khosrowshahi.

It's the first time Dropbox's bottom line is in the black since the company went public two years ago.

Streaming services have reported huge spikes in subscribers during the crisis as stay-at-home orders have forced more people to stay inside.

Presumptive Democratic presidential candidate Joe Biden strongly denies claims by Tara Reade that he sexually assaulted her in 1993, when he was a senator.

The new daily testing policy for the president and the people in his circle comes hours after the White House acknowledged that a personal valet for Trump tested positive for Covid-19.