Coronavirus Covid-19

The infections among members of the Shincheonji Church of Jesus, the Temple of the Tabernacle of the Testimony (Shincheonji) are linked to one woman.

The sect in the city of Daegu accounts for 30 of 53 new cases, with officials warning of an unprecedented crisis.

South Korea also confirmed its first death from the disease Covid-19.

The coronavirus, which originated in China's Hubei province, causes pneumonia-like symptoms.

China has now seen 2,118 deaths and recorded nearly 75,000 infections.

Sarah Dalton, executive director of the Association of Salaried Medical Specialists, said the so-called "winter surge" was now "the new normal" in many hospitals.

"It's not unusual for our medical wards to be over 100 percent occupancy even outside the winter surge.

"So if we get flu at the same time as Covid-19, that seems like too many things."

Health workers had borne the brunt of the Covid-19 outbreak in China and their experience showed clear protocols and protective equipment were needed now, before the virus arrived, she said.