Hong Kong health officials report investigating four additional autochthonous dengue fever (DF) cases, bringing the total cases to 23.


The patients, residents of Cheung Chau, Yuen Long and Tseung Kwan O, had no international travel history during the incubation period.

All were in Cheung Chau or the Lion Rock Park area during the incubation period.

All are currently in stable condition.

The Centre for Health Protection (CHP) appeals to members of the public not to visit Lion Rock Park during the closure period in order to prevent contracting DF. Scientific studies have shown that infected persons can transmit the virus to mosquitoes through mosquito bites even if they remain asymptomatic or before their onset of symptoms, leading to further spread of the disease. Hence, people who had visited Lion Rock Park are advised to apply insect repellent for 14 days upon their last visit, and those with DF symptoms should seek medical advice as early as possible.

Persons who have been to the vicinity of Wong Tai Sin (particularly Lion Rock Park), Kwai Shing West Estate, Clear Water Bay Second Beach, Cheung Chau (Hillside Road, Tsan Tuen Road, Fa Peng Road, San Hing Street and Cheung Chau Sai Tai Road), Highland Park, Sai Tso Wan Recreation Ground, Wing Yiu Street, Tak Long Estate, Portland Street, Shanghai Street, Greenfield Garden, Jade Villa, Le Point and Ki Lun Tsuen with DF symptoms should call the CHP’s hotline (2125 1122) for laboratory investigation or referral as appropriate. The hotline operates from 9am to 5.45pm daily.