MOH advisory, especially for young children, pregnant women or the elderly, or people with chronic illness such as diabetes.

“Exercise caution by avoiding raw ready-to-eat food (e.g. raw oysters, sashimi, etc)”.

https://www.moh.gov.sg/content/moh_web/home/pressRoom/pressRoomItemRelease/2015/update-on-investigation-into-group-b-streptococcus-cases.html