The Centre for Health Protection today urged people to take precautions against Dengue fever as four new cases have been confirmed in the past week.
Two of them are imported cases. The patients had been in Vietnam and the Philippines during the incubation period.
As of yesterday there have been 61 confirmed imported cases.
For the remaining two new cases, one is a local case and the other is under investigation.
The centre urged people to take anti-mosquito precautions both locally and during travel.