Five kindergartens were among them, including Cannan Kindergarten and Nursery in Whampoa Garden, Wo Che Nursery School in Sha Tin, and Academy Kindergarten in Tin Shui Wai.
Tivoli Anglo-Chinese Kindergarten in Tsing Yi and Tsui Tsin Tong Kindergarten in Sheung Shui were also in the list.
The other three schools were Shatin Tsung Tsin School, TWGHs Kwan Fong Kai Chi School in Shek Kip Mei and its dorms in Chuk Yuen, Wong Tai Sin.
The government stated that visitors - who have been to these schools for more than two hours from April 10 to yesterday - have to do mandatory coronavirus tests by the 26th of this month.
Sample bottles would also be distributed to people in kindergarten and nursery. They are required to return the sample bottles by the 28th of this month.
One picture is worth a thousand words: dozens of Hamas rockets in front of dozens of Iron Dome missiles in the night sky