1,193 dengue cases were reported in the week ending 2 July 2022, 20 cases more than in the previous week. NEA urges all individuals and premises owners to continue taking  urgent action to break disease transmission, by removing stagnant water and potential mosquito breeding habitats by doing the Mozzie Wipeout ‘B-L-O-C-K’ steps regularly:

‘B-L-O-C-K’ steps
Break up hardened soil
Lift and empty flowerpot plates
Overturn pails and wipe their rims
Change water in vases
Keep roof gutters clear and place BTI insecticide inside

As of 4 July 2022, there are 341 active dengue clusters, with 120 dengue clusters with red colour alert (i.e. cluster with 10 or more cases). Dengue virus serotype 3 (DENV-3) has been detected in 116 of the 120 dengue clusters with red colour alert. In May 2022, Aedes aegypti mosquito population (the primary dengue vector) remained high in Singapore, and was about 11 per cent higher than in the same period last year (May 2021). 

The high Aedes aegypti mosquito population, together with circulation of the previously uncommon DENV-3, will likely lead to dengue case numbers remaining high in the coming months. All  stakeholders and the community must urgently do their part to remove stagnant water from our environment and maintain good housekeeping, to deprive mosquitoes of potential breeding habitats.

NEA is conducting intensified vector control operations at dengue cluster areas. Source eradication of mosquito breeding habitats and spraying of insecticide to control the adult mosquito population remain key to dengue prevention. NEA, together with the various agencies and other stakeholders represented in the Inter-Agency Dengue Task Force (IADTF), including Town Councils, have been checking and ridding our public areas and housing estates of potential mosquito breeding habitats.

Residents, especially those residing in dengue cluster areas, are urged to carry out the three protective actions against dengue:‘Spray, Apply, Wear’ or ‘SAW’ in short:

1.Spray insecticide in dark corners around the house
2.Apply insect repellent regularly
3.Wear long-sleeve tops and long pants

NEA advises members of the public to use mosquito repellent regularly to protect themselves from getting mosquito bites, especially if they are living in dengue cluster areas. Repellents containing DEET (N,N-diethyl-m-toluamide), picaridin or IR3535 as the active ingredient, are the most effective in repelling mosquitoes. For more information, please refer to the ‘Guidelines on the use of Mosquito Repellent Spray’.

Two educational videos have also been published to guide residents on the spraying of aerosol insecticide at home, and advise on what to do if one lives in a dengue cluster area or sees adult mosquitoes at home.

Those showing symptoms suggestive of dengue should see a medical practitioner early, to be diagnosed and managed accordingly. Early diagnosis can facilitate better case management. Persons with dengue should apply mosquito repellent regularly, so that mosquitoes do not bite and pick up the virus from them before biting someone else, thus reducing dengue transmission. Symptoms suggestive of dengue include:

  • Sudden onset of fever for two to seven days;
  • Severe headache with retro-orbital (behind the eye) pain;
  • Joint and muscle pain;
  • Skin rashes;
  • Nausea and vomiting;
  • Bleeding from the nose or gums;
  • Easy bruising of the skin.

Please visit the Ministry of Health’s website for more information on Dengue Fever and warning signs of severe dengue.

The latest updates can also be found on the NEA website, and myENV app.