TAIPEI (REUTERS) - Taiwan began moving more than 400 people to a centralised quarantine facility on Thursday (April 29) from an airport hotel after a rare domestic outbreak of Covid-19, and will sterilise the entire hotel building.

Taiwan has kept the pandemic well under control because of early and effective prevention, including largely closing its borders.

Most cases have been imported from abroad, though the island has reported sporadic domestic infections in recent months.

Since last week, it has reported Covid-19 infections in nine freighter pilots from Taiwan's largest carrier, China Airlines, some of whom had been staying at the Novotel Taipei Taoyuan International Airport hotel, which is now being evacuated.

They are thought to have been infected overseas.

Health Minister Chen Shih-chung told reporters that an infected hotel worker was in intensive care and that the government had decided to move all 412 people at the hotel, including pilots and staff, to a centralised quarantine facility for tests.

The hotel is being thoroughly sterilised, he added.

"We are worried that other workers may also have been infected," Mr Chen said.

China Airlines, which has had to cancel some flights while its pilots are tested, said it was fully complying with government epidemic prevention steps and stepping up vaccinations for staff.

"During the pandemic, the virus is everywhere, and China Airlines will not let up for a moment," it said in a statement.

Taiwan's total case numbers remain extremely small compared with those of some other parts of the world, with only 58 people being treated in hospital.

It has reported 1,122 cases to date, including 12 deaths.

Taiwan holds news conferences to announce details of each individual new case.