As of 12pm on May 30, the Ministry of Health (MOH) confirmed an additional 506 cases of COVID-19 infection in Singapore. This brings the national tally to 34,366 cases.
Majority of the cases continue to be Work Permit holders residing in dormitories, including in factory-converted dormitories, due to extensive testing in these premises.
Of the new cases, 99% are linked to known clusters, while the rest are pending contact tracing.
There are five cases in the local community, two of which are Singaporeans/Permanent Residents (SC/PR).
Among the two SC/PR cases, one is a non-teaching preschool staff who was picked up as a result of proactive screening to prepare for the phased reopening of preschools. MOH is conducting a serological test to determine if this was a past or current infection. The other case is currently unlinked.
Among the three Work Pass and Work Permit holders, one was a contact of previous confirmed cases, and had already been placed on quarantine earlier.
Another was tested before he was due to start work on a plumbing project at a preschool. Epidemiological investigations are ongoing for the remaining case.
Overall, the number of new cases in the community has decreased, from an average of seven cases per day in the week before, to an average of four per day in the past week, MOH said.