The World Health Organization announced Thursday that it was declaring the coronavirus outbreak a “public health emergency,” setting in motion a plan for global coordination to stem the spread of the virus, which originated last month in Wuhan, China.

Chinese officials announced more than 3,100 new cases of the coronavirus,as the total number of people infected in China reached 9,720 as of Friday morning Beijing time, including nine cases in the self-governing island of Taiwan. The State Department heightened its travel advisory for China to Level 4: Do Not Travel due to the virus outbreak.

The United States confirmed a sixth U.S. case of the Wuhan coronavirus on Thursday, marking the first time the virus has spread from person to person in the United States.

With experts saying a vaccine is still a long way off, more international cases of the illness have appeared. Australia, Vietnam and South Korea all announced new coronavirus infections, while India and the Philippines had their first ones. Here’s what we know so far:

● Chinese officials say the death toll in the country has reached 213.

● More than 80 cases have been recorded outside China and the self-governing island of Taiwan, and four other countries have reported person-to-person transmission of the virus.

● Roughly 200 Americans evacuated from Wuhan landed in California on Wednesday, while the United States confirmed its first case where the virus had spread from person to person within the United States.

● WHO announced Thursday that it was declaring the outbreak a “public health emergency,” which legally requires states to ramp up their response to the crisis.

Infections also have been confirmed in Italy, France, Hong Kong, Japan, Nepal, Cambodia, Singapore, the United Arab Emirates, Vietnam, Taiwan, Canada, Thailand, Malaysia, Germany, Finland and Sri Lanka. We’re mapping the spread here

“Those currently in China should consider departing using commercial means,” the State Department said in the advisory. “The Department of State has requested that all non-essential U.S. government personnel defer travel to China in light of the novel coronavirus.”…

The union representing pilots at American Airlines on Thursday filed suit in a Texas court seeking to stop the Fort Worth-based carrier from flying to China, saying continuing to serve the region during the coronavirus outbreak poses a threat to crew members and the public.

“Recent events relating to the outbreak of the novel coronavirus in China have created a threat to the safety of passengers and flight crew travelling to and from that country,” says the lawsuit filed on behalf of the Allied Pilots Association, which represents the 15,000 pilots at American.

The suit noted that several other carriers, including British Airways, Air Canada and the Lufthansa group, have halted all flights to the region….

Chinese official data now shows 8,149 confirmed coronavirus cases in the country with 171 deaths, according to state media outlets.

The figure includes nine cases in the self-governing island of Taiwan….

In companies and laboratories across the world, scientists are racing at record pace to build a vaccine against the coronavirus.

The National Institutes of Health projects that a vaccine it is working on with biotech company Moderna could be tested in humans in April. Scientists in Houston are pushing for another candidate vaccine — developed when a similar virus was the threat — to be thawed and formulated in vials for further testing. Yet another possible vaccine is being built at facilities in San Diego and Houston, with projections it could be tested in people by summer.

To scientists, the work to build a vaccine against the new coronavirus is advancing with speed they could barely have imagined a decade ago. At the same time, it’s not even close to quick enough to contain the spreading infection, but could be essential if the coronavirus rages on or resurfaces later….

Global stocks declined sharply Thursday as the continued spread of the coronavirus in China threatened to stall one of the world’s most powerful economic engines.

China’s markets are closed until Monday for the extended Lunar New Year holiday, but Hong Kong’s Hang Seng Index slumped more than 2.5 percent, and Japan’s Nikkei declined 1.7 percent. European stocks followed suit, with the benchmark Stoxx 600 index down 0.95 percent in midday trading. Dow Jones industrial average futures are poised to drop more than 220 points at the open.

The virus has paralyzed China’s workforce, with at least three provinces barring all nonessential business activity until Feb. 10….

Commerce Secretary Wilbur Ross said the coronavirus spreading in China and around the world could “help” to bring jobs to the United States because companies will be moving operations away from impacted areas.

During an appearance on Fox Business on Thursday morning, Ross said that he didn’t “want to talk about a victory lap over a very unfortunate, very malignant disease,” and that “Americans’ hearts” were going out to the victims….

More international airlines are canceling flights to Chinese cities, citing drops in demand as the coronavirus outbreak continues to spread.

Israel’s El Al, Scandinavian Airlines, Egypt Air and Turkish Airlines announced on Thursday suspensions in flights to Chinese hubs, joining other major carriers such as American and United Airlines, British Airways and Germany’s Lufthansa in cutting down or entirely suspending their service…..

Russia is closing its entire border with China, Prime Minister Mikhail Mishustin announced Thursday, in the latest measure to prevent the spread of coronavirus.

Although no cases of the disease have surfaced in Russia, the country does share a 2,615-mile border with China, one of the world’s longest international borders….