China coronavirus death toll jumps past 400

The coronavirus has killed more than 425 people in China since spreading from the central city of Wuhan late past year.

The World Health Organisation has advised against trade and travel restrictions against China amid the coronavirus outbreak that has so far killed at least 425 people and infected more than 20,000.

The epidemic has also been detected on the high seas. Cruise operator Carnival Japan says the passenger was an 80-year-old man who disembarked from the Diamond Princess on January 25 after it docked in Hong Kong.

Meanwhile, medical workers in Hong Kong staged a second consecutive day of strikes Tuesday as the Chinese territory reported its first death from the coronavirus.

On Monday, Hong Kong's leader announced the closure of all but two land border crossings to mainland China in a bid to halt the spread.

Hong Kong was badly hit by Severe Acute Respiratory Syndrome (SARS), another coronavirus that emerged from China in 2002 to kill nearly 800 people worldwide.

A woman wearing a protective face mask stands in front of a Chinese national flag and a Hong Kong flag outside government headquarters in Hong Kong, Tuesday, Feb. 4, 2020.

Hong Kong health authorities identified the victim as a 39-year-old male with a pre-existing illness who had recently visited Wuhan.

Such uncertainties have spurred extreme measures by some countries to stem the spread.

New cases were reported in the United States including a patient in California who was infected through close contact with someone in the same household who had been infected in China.

While people were right to be concerned, there was "no reason for panic and fear", he said.

Beijing, however, is upset that a number of countries are restricting travelers from China from crossing their borders.

China's Foreign Ministry spokesperson Hua Chunying condemned the U.S. for not providing "any substantial help" to China and making a fuss about the virus outbreak.

"We expect to see more cases of person-to-person spread", said Dr. Nancy Messonnier, director of the National Center for Immunization and Respiratory Diseases at the U.S. Centers for Disease Control and Prevention (CDC).

The White House said China had accepted its offer of US experts among a World Health Organization mission to study and help combat the virus.

Wuhan city and Hubei province are still regarded as the epicentre of the coronavirus and a priority for containment.

Chief Pentagon spokesman Jonathan Rath Hoffman said Monday the United States is already prepared to provide housing for up to 1,000 people who may need to be quarantined.