Daniel Wood | WCAI

Daniel Wood

This page is updated regularly.

Since the new coronavirus was first reported in Wuhan, China, in December, the infectious respiratory disease COVID-19 has spread rapidly within China and to neighboring countries and beyond.

The first confirmed coronavirus cases outside China occurred on Jan. 20, in Japan, Thailand and South Korea. On Jan. 21, the first case in the U.S. was identified in Washington state.

This page is updated regularly.

Since the first U.S. case of the coronavirus was identified in Washington state on Jan. 21, health officials have identified more than 500,000 cases across the United States and more than 20,000 deaths. By March 17, the virus had expanded its presence from several isolated clusters in Washington, New York and California to all 50 states and the District of Columbia.

Updated on March 19 at 4:14 p.m. ET

On March 19, the State Department issued a travel notice advising U.S. citizens to avoid all international travel due to the coronavirus pandemic, citing travel restrictions, mandatory quarantines and potential severe travel disruptions due to airlines cancelling many international flights.