Updated at 11 p.m. ET

The Centers for Disease Control and Prevention says there's been "confusion" about the handling of a coronavirus patient in California who is thought to represent the first case of the virus being transmitted in the general population, rather than through a known contact with someone who has been in China.

The case involves a woman who appears to have contracted the virus in California, apparently without having contact with anyone who had traveled abroad or was previously known to have the coronavirus.

A Google employee in Switzerland has tested positive for the new coronavirus, as the tech giant and other American companies crack down on employee travel amid the widening outbreak.

The Google employee was in its Zurich office "for a limited time" before exhibiting symptoms, the company said in a statement.

"We have taken - and will continue to take - all necessary precautionary measures, following the advice of public health officials, as we prioritize everyone's health and safety," Google said.

Updated at 11:35 p.m. ET

A federal appeals court in California on Friday briefly blocked the Trump administration's "Remain in Mexico" program, seemingly dealing a blow to the president's controversial policy requiring asylum seekers to wait in Mexico for their day in U.S. immigration court.

But within hours, a three-judge panel voted unanimously to suspend its own order, giving the government until the end of Monday to respond with written arguments and plaintiffs until the end of Tuesday.