People who had been to these places must undergo testing by Saturday. Those who had tested negative from Tuesday to today could be exempted.

The seven places are:

- Block 7, Phase 2 of Belvedere Garden in Tsuen Wan (for more than two hours from September 5 to 30)

- HKAYP Jockey Club Duke of Edinburgh Training Camp on Hang Ha Po, Lam Tsuen in Tai Po (for more than two hours from September 14 to 30)

- Tower 3, Monterey Cove, Phase 1, Caribbean Coast on Kin Tung Road in Tung Chung (for more than two hours from September 7 to 30)

- St Vincent De Paul Nursery School, 2/F, Bo Fung Building on Horse Shoe Lane in Kwun Tong (for more than two hours from September 17 to 30)

- YMCA of Hong Kong Christian Nursery School (Farm Road), Portion of G/F, Majestic Park on Farm Road in Kowloon City (for more than two hours from September 17 to 30)

- Primary 1 of Bishop Ford Memorial School on Pui Man Street, Tung Tau Tsuen in Wong Tai Sin (who had face-to-face lessons with such students from September 17 to 30)

- Primary 1 of Kowloon City Baptist Church Hay Nien Primary School, Chevalier Garden on Hang Shun Street in Ma On Shan (who had face-to-face lessons with such students from September 17 to 30)