With the dengue peak season approaching, the National Environment Agency is rolling out new dengue prevention measures.

Colour codes corresponding to those of traffic lights will be put on banners in active clusters from April 28. A red alert banner means that there are more than 10 cases within that area, a yellow refers to less than 10 cases, while a green banner signals that an area has no new cases but will be monitored for the next 21 days.

The agency is also recruiting more volunteers on top of its some 800 existing ones in partnership with the People's Association.

Volunteers will attend workshops and then make trips around estates every Sunday starting April 28 to encourage residents to lookout for potential breeding spots. NEA said the new element to this year's measures is that with the help of the additional volunteers residents will be encouraged every week on Sunday to lookout for potential mosquito breeding spots.