The latest case reported on Feb 22 was a patient who had been to the Philippines during the incubation period, Centre for Health Protection said.
Since January, there have been four dengue cases imported from the Philippines and one each from India, Indonesia, Singapore and Thailand.
The CHP said dengue remains endemic in some areas in Asia. In Guangdong, there were three cases this year as of Feb 15.
The latest figures for 2018 reveal that 2,526 cases have been recorded in Thailand, 394 in Singapore (since Dec 31, 2017) and 11 in Japan. In the Americas, the latest figures show there were 9,396 cases in Brazil and 1,295 in Mexico this year.
The CHP said the public should take heed of the following advice on mosquito control:
• Check all gully traps, roof gutters, surface channels and drains thoroughly to prevent blockage;
• Scrub and clean drains and surface channels with an alkaline detergent compound at least once a week to remove any deposited mosquito eggs;
• Dispose of refuse, such as soft drink cans, empty bottles and boxes, properly in covered litter containers;
• Change the water of flower and plant vases at least once a week and avoid using saucers for plants;
• Level irregular ground surfaces before the rainy season;
• Avoid staying in shrubby areas; and
• Take personal protective measures such as wearing light-colored long-sleeved clothes and long trousers and apply insect repellent containing DEET to clothing or uncovered areas of the body during outdoor activities.
It said if a person is feeling unwell, he should seek medical advice promptly.