The Centre for Health Protection has found enterovirus-71 in  two baby girls, bringing this year's total to 20.

A 23-month-old baby developed a rash and mouth ulcers on June 18 while the other, a 25-month-old, developed a fever, rash and mouth ulcers on June 15. Both recovered without hospitalisation and have not travelled outside Hong Kong recently.

Their family members had no symptoms of the disease.

A total of 18 babies, aged from nine months to 32 months, all from a Tsuen Wan childcare centre, came down with hand, foot and mouth disease from June 6 to 18. Most of them have recovered and none developed complications or required hospitalisation.

The centre called on people to guard against infection and maintain good personal and environmental hygiene.

For more advice on disease prevention, click here or call the central health education hotline 2833 0111.