SINGAPORE - Twelve new coronavirus cases were confirmed on Wednesday (Sept 23), taking Singapore's total to 57,639.

They included one community case who is a work permit holder, said the Ministry of Health (MOH).

He is a 31-year-old Bangladeshi who was confirmed positive on Tuesday (Sept 22).

He was asymptomatic but was identified as a contact of a previously confirmed case, and was tested during quarantine.

There were also four imported cases, comprising three permanent residents who returned from India and one work pass holder who returned from Iran.

All the imported cases had been placed on stay-home notice on arrival in Singapore.

Migrant workers staying in dormitories made up the remaining seven new coronavirus patients announced on Wednesday.

Among them, four were identified as contacts of previous cases and had been quarantined to prevent further transmission.

They were tested during their quarantine period, the ministry said.

The remaining three cases were detected through surveillance testing, like the rostered routine testing of workers staying in dormitories that is done every fortnight.

No new clusters and no new locations visited by infectious Covid-19 patients were announced on Wednesday.

The number of new daily cases in the community has remained stable at an average of one case per day in the past two weeks, said the ministry.

The number of unlinked cases in the community has also remained stable at an average of fewer than one case a day for the past fortnight.

With 29 cases discharged on Wednesday, 57,276 patients have fully recovered from the disease.

A total of 36 patients remain in hospital, while 285 are recuperating in community facilities.

None is in intensive care.

Singapore has had 27 deaths from Covid-19 complications, while 15 who tested positive died of other causes.

On Tuesday, MOH reported 21 new coronavirus cases, which included one imported case - a work permit holder who had returned from India on Sept 10.

She was placed on a 14-day stay-home notice upon arrival in Singapore, said MOH.

There were no community cases for the second day in a row on Tuesday and also no new locations visited by infectious coronavirus patients and no new Covid-19 clusters.

Migrant workers staying in dormitories accounted for the remaining 20 new coronavirus patients reported on Tuesday.

Among them, six were identified as contacts of previous cases and had been quarantined to prevent further transmission.

They were tested during their quarantine period, MOH said.

The remaining 14 cases were detected through surveillance testing, such as the rostered routine testing of workers staying in dormitories every fortnight.

Globally, the virus outbreak, which began in December last year, has infected more than 31.7 million people. More than 974,000 people have died.