Virus fears rise after Cambodia's acceptance of cruise ship

The feel-good story of how Cambodia allowed a cruise ship to dock after it was turned away elsewhere in Asia for fear of spreading the deadly virus that began in China has taken an unfortunate turn after a passenger released from the ship tested positive for the virus.

News over the weekend that an 83-year-old American woman who was on the ship and flew from Cambodia to Malaysia was found to carry the virus froze further movement of the passengers and crew of the MS Westerdam. Some are now in hotels in Cambodia's capital, Phnom Penh, while others are still aboard the ship.

The American woman was among several hundred passengers who were flown out of Cambodia on Friday and Saturday. According to authorities in Malaysia, 143 continued their flights home from that country, while the woman and her 84-year-old husband, who was diagnosed with pneumonia, remained behind for treatment.

The virus has infected more than 71,000 people globally and killed more than 1,770, with the vast majority of the cases in China, where the outbreak began two months ago.

The dispersal around the world of passengers from the ship with possible exposure to the virus has sparked concern.

"I think now given that there is a confirmed case that is suspected to have acquired infection on board the ship, the other passengers should be asked to quarantine themselves at home and alert health authorities if they develop fever or respiratory symptoms within the 14 days since disembarkation," said Professor Benjamin Cowling from the School of Public Health at Hong Kong University.

Dr Gagandeep Kang, executive director of India's Translational Health Science and Technology Institute, said it is unclear whether the woman's infection could result in an outbreak in another part of the world.

"We will have to wait and see," she said, adding that it would depend on where the woman got the infection, and at what stage of the infection she was in while in contact with other people.

The ship's operator, Holland America Line, said in a statement Sunday that it was working closely with government and health officials in Malaysia and Cambodia and experts with the US Centers for Disease Control and the World Health Organization.

"At this time, no other guests or crew, either on board or on their way home, have reported any symptoms of the illness," the statement said. "Guests who have already returned home will be contacted by their local health department and be provided further information."