https://www.moe.gov.sg/faqs-covid-19-infection

Do I need to inform my child's school if my workplace has a confirmed case? [UPDATED]
There is no need to inform the school if your workplace has a confirmed case unless it is you or someone in your immediate household who is a confirmed case. Please follow MOH's Protocol 1 and ensure that your household members' names are submitted to MOH for the issuance of the Health Risk Warning Order.

Please continue to adopt good personal hygiene practices, and seek medical assistance immediately if you or your child are unwell.