CDC reports first case of person-to-person virus in US

The Centers for Disease Control and Prevention (CDC) on Thursday confirmed the first case of the coronavirus spreading from one person to another within the United States.

All five of the US cases recorded so far had been from travelers returning to the US from China, where the virus was first discovered. But the CDC on Thursday said a patient in Chicago contracted the coronavirus from his spouse, who had recently traveled to China.

"We understand this may be concerning but based on what we know now our assessment remains that the immediate risk to the American public is low," said CDC Director Robert Redfield.