Press release from CHP :
" The Centre for Health Protection (CHP) of the Department of Health is today (July 8) investigating an outbreak of hand, foot and mouth disease (HFMD) at a nursery school in Yuen Long affecting 20 pupils, and hence appealed to the public to maintain strict personal and environmental hygiene to prevent HFMD.
The affected pupils, comprising 10 boys and 10 girls aged from 2 to 5, have developed fever, oral ulcers, and rash and vesicles on their hands or feet since May 23.
All affected pupils sought medical consultation. One of them was hospitalised and has been discharged. They are all in a stable condition.
The stool sample of one of the affected pupils tested positive for Coxsackie virus A6.
Officers of the CHP have conducted a site visit and provided health advice to the staff. The school has been put under medical surveillance."