SINGAPORE - Nine more Covid-19 cases, including four primary school pupils, have been linked to the Learning Point tuition centre cluster.

They comprise pupils from Kong Hwa School, Yu Neng Primary School and St Margaret's Primary School. This takes the total number of cases in the cluster to 18. A 50-year-old woman who works as a tutor at the centre was confirmed to have Covid-19 on Wednesday (May 12).

The cases are among 38 new community infections reported in Singapore on Sunday (May 16). There were also 11 imported cases.

The tuition centre was among several clusters that have expanded in Singapore, according to figures released by the Ministry of Health (MOH) on Sunday night.

There are two more cases in the Changi Prison cluster - a 35-year-old Chinese national who works as a cargo driver at Sats Food and a 22-year-old Vietnamese man who is unemployed.

They are household contacts of a chef who works at Changi Prison Complex and tested positive for Covid-19 on Thursday (May 13). There are now four cases in that cluster.

Meanwhile, the cluster at Changi Airport Terminal 3 saw six more cases, including a one-year-old Singaporean boy. He is a family member and household contact of a 44-year-old Singaporean man who works as a private-hire driver with Gojek and visited the terminal on May 6. The man was confirmed to have Covid-19 on Wednesday.

The boy was placed on quarantine on Thursday and developed a fever and runny nose two days later. His test result returned positive on the same day, and his serology test result is pending.

A 39-year-old Filipino who works as a nurse at Ren Ci Nursing Home (Ang Mo Kio) tested positive as well and was linked to the cluster.

He is a household contact of a 37-year-old Philippine national who was also among the new cases reported on Sunday. The man works as a sales representative at JR Life Sciences, and had visited Changi Airport Terminal 3 on May 4.

There are now 74 cases in the Changi Airport Terminal 3 cluster, which is the largest.

There was also one more case in the Wok Hey (White Sands) cluster - a 26 year-old Singaporean woman who works as a customer service officer at Wareesan Management.

She is a family member and household contact of two previously confirmed cases.

MOH is making special swabbing arrangements for all tenants and staff who have been working at White Sands Mall and the Giant outlet at Block 440 Pasir Ris Drive 4 since May 2 as some visitors to these venues have tested positive for the virus in the past two weeks.

The testing is mandatory for all tenants and staff, and will be held at White Sands on May 17 and 18, said Senior Minister and Coordinating Minister for National Security Teo Chee Hean in a Facebook post on Sunday.

Unlinked cases

Meanwhile, there were 17 unlinked community cases on Sunday, including a 29-year-old Filipina woman who works as a nurse at Raffles Hospital.

She arrived from the Philippines on April 1 and served her stay-home notice (SHN) at a dedicated facility until April 14. Her swab done on April 14 came back negative for Covid-19.

She is asymptomatic, and was detected when she was tested on Friday (May 14) as part of Rostered Routine Testing (RRT) for healthcare workers.

Her test result came back positive the next day, and her serology test result is pending. She received her first dose of the vaccine on May 8.

Another unlinked case is a 52-year-old permanent resident employed by Certis Cisco Security as an auxiliary police officer at the Bank of China at Westgate.

He developed a fever, cough and body aches on May 13, and sought medical treatment the next day at a general practitioner (GP) clinic, where he was tested for Covid-19.

The test returned positive two days later, and his serology test result is pending.

He has tested preliminarily positive for the B1617 variant, and is pending further confirmatory tests.

A Singapore Polytechnic student was also among the unlinked community cases. The 18-year-old student works part-time at Star Arts in Westgate.

He developed a fever, cough and headache on May 13 and sought medical treatment at a GP clinic the next day, where he was tested for Covid-19. His test result came back positive for Covid-19 infection on May 15. His serology test is pending.

There are currently 207 confirmed cases who are still in hospital. Of these, most are stable or improving, with two in critical condition in the intensive care unit, and 243 isolated and cared for at community facilities.

These are those who have mild symptoms, or are clinically well but still test positive for Covid-19.

Thirty-one people have died from complications due to Covid-19 infection.