BEIJING (AP) -- Hong Kong hospitals cut services as medical workers were striking for a second day Tuesday to demand the border with mainland China be shut completely to ward off a virus that caused its first death in the semi-autonomous territory and that authorities fear could be spreading locally.
All but two of Hong Kong's land and sea crossings with the mainland were closed at midnight after more than 2,000 hospital workers went on strike Monday. But on Tuesday, health authorities reported two additional patients without any known travel to the virus epicenter, bringing the number of locally-transmitted cases up to four.
Chuang Shuk-kwan, who heads the communicable disease branch at the Center for Health Protection, said the growing caseload "indicates significant risk of community transmission" and could portend a "large-scale" outbreak.
According to the Hospital Authority Employees' Alliance, the strike organizer, more than 7,000 members joined the strike today to demand closure of the border across which tens of thousands of people continue to travel daily.
Hong Kong's Hospital Authority said it was cutting back services because "a large number of staff members are absent from duty" and "emergency services in public hospitals have been affected."
Hong Kong was hit hard by SARS, or severe acute respiratory syndrome, in 2002-03, an illness from the same virus family as the current outbreak. Trust in Chinese authorities has plummeted following months of anti-government protests in the Asian financial hub.
The territory's beleaguered leader Kerry Lam criticized the strike action and said the government was doing all it could to limit the flow of people across the border.
"Important services, critical operations have been affected," including cancer treatments and care for newborns , Lam told reporters. "So I'm appealing to those who are taking part in this action that let's put the interests of the patients and the entire public health system above all other things."
Also Tuesday, the leader of the nearby gambling enclave of Macao asked the city's casino bosses to suspend operations to prevent further infections after a worker at one of the resorts tested positive for the virus. Macao has recorded 10 cases in all.
The mainland's latest figures of 425 deaths and 20,438 confirmed infections of the new coronavirus were up from 361 deaths and 17,205 cases the previous day. Outside mainland China, at least 180 cases have been confirmed, including two fatalities, one in Hong Kong and the other in the Philippines.
The patient who died in Hong Kong was a 39-year-old man who had traveled to Wuhan, the mainland city that has been the epicenter of the outbreak, before being hospitalized. The Hospital Authority said Tuesday he had existing health conditions but did not give details. Hong Kong later reported two other people were confirmed to have the virus, with countries from Belgium to Vietnam also reporting new cases. A growing list of countries from the U.S. to Iran have arranged flights to return their citizens home from China.
Most cases of the illness have been mild, and many who died have been older people with other ailments such as diabetes or heart disease.
China has struggled to maintain supplies of masks to filter out the virus, along with protective suits and other key articles, as it seeks to enforce temperature checks at homes, offices, shops and restaurants, require masks be worn in public and keep more than 50 million people from leaving home in Wuhan and neighboring cities.
To help meet demand, the European Union office in Beijing said member states have shipped 12 tons of protective equipment to China, with more on the way.
Late Monday, China's President Xi Jinping presided over a special meeting of the top Communist Party body for the second time since the crisis started, saying "we have launched a people's war of prevention of the epidemic."
Other countries are continuing evacuations and restricting the entry of Chinese or people who have recently traveled in the country.
Germany's Lufthansa became the latest international airline to suspend flights to China, and several countries are barring Chinese travelers or people who passed through China recently. Japan Airlines and All Nippon Airways also said they were suspending or cutting back on flights from Japan to several Chinese cities from mid-February to late March.
In Wuhan, patients were being transferred to a new 1,000-bed hospital that officials hope will improve isolation to stem the virus's spread. It was built in just 10 days, its prefabricated wards equipped with state-of-the-art medical equipment and ventilation systems. A 1,500-bed hospital also specially built for patients infected with the new virus is due to open within days.
Elsewhere in Wuhan, authorities were converting a gymnasium, exhibition hall and cultural center into hospitals with a total of 3,400 beds to treat patients with mild symptoms of the virus. Television footage of those facilities showed beds placed in tight rows in large rooms without dividers or any barriers to keep patients isolated.
Authorities hope that will help relieve what is being described as an overwhelmed public health system in Wuhan and surrounding areas.
One man, Fang Bin, said he saw wards so crowded during a visit to the city's No. 5 Hospital on Saturday that some patients were forced to sit on the ground for lack of seating.
"There are too many patients, it's overcrowded," Fang told The Associated Press. He said he was taken from his home and questioned by police after he posted a video of what he'd seen online, a reflection of the communist government's instinctive impulse to control all information about politics and public emergencies.
"There aren't enough beds at all these hospitals," Fang said.
Such scenes have revived memories of the 2002-2003 outbreak of SARS that began in China and spread worldwide. The new virus is believed to be much less virulent, however, with experts putting the mortality rate of those catch it at about 2 percent. Most victims were over 60 years and many had pre-existing medical problems.
With no end to the outbreak in sight, authorities in Hubei and elsewhere extended the Lunar New Year holiday break, due to end this week, well into February to try to keep people at home and reduce the spread of the virus. All Hubei schools are postponing the start of the new semester until further notice, as a many in Beijing, Shanghai and elsewhere.
Chinese scientists said they have more evidence the virus originated in bats. In a study published in the journal Nature, Shi Zhen-Li and colleagues at the Wuhan Institute of Virology reported that genome sequences from seven patients were 96% identical to a bat coronavirus.
On Tuesday, the Korea Centers for Disease Control and Prevention said a 42-year-old South Korean woman tested positive for the virus, days after she returned from a trip to Thailand with chills and other symptoms.
It is South Korea's 16th case. Thailand has confirmed 19 cases, mostly Chinese tourists but also in a Thai taxi driver.
A passenger on a Japanese-operated cruise ship tested positive after leaving the vessel while it was in Hong Kong, and Japanese officials were conducting medical checks on the more than 3,000 people on board Tuesday.