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Dengue Fever and How To Prevent It

Dengue is transmitted by the bite of an Aedes mosquito infected with any one of the four dengue viruses. It occurs in tropical and sub-tropical areas of the world. Symptoms appear 3—14 days after the infective bite. Dengue fever is a febrile (fever) illness that affects infants, young children and adults. Symptoms range from a mild fever, to incapacitating high fever, with severe headache, pain behind the eyes, muscle and joint pain, and rash. There are no specific antiviral medicines for dengue. It is important to maintain hydration. Use of acetylsalicylic acid (e.g. aspirin) and non steroidal anti-inflammatory drugs (e.g. Ibuprofen) is not recommended. Dengue haemorrhagic fever (fever, abdominal pain, vomiting, bleeding) is a potentially lethal complication, affecting mainly children. Early clinical diagnosis and careful clinical management by experienced physicians and nurses increase survival of patients.

HOW to PREVENT: At all times
v     Turn pails and watering cans over and store them under shelter.
v     Remove water in plant pot plates. Clean and scrub the plate thoroughly to remove mosquito eggs. Avoid the use of plant pot plates, if possible.
v     Loosen soil from potted plants to prevent the accumulation of stagnant water on the surface of the hardened soil.
v     Do not block the flow of water in scupper drains along common corridors in HDB estates. Avoid placing potted plants and other paraphernalia over the scupper drains.
v     Cover rarely used gully traps. Replace the gully trap with non-perforated ones and install anti mosquito valves.
v     Cover bamboo pole holders after use. Rainwater can potentially accumulate in these bamboo pole holders if they are uncovered and create a habitat.
v     No tray or receptacles should be placed beneath and or/ on top of any air-conditioning unit so as not to create a condition favorable for mosquito breeding.
Every other day
v     Change water in flower vases. Clean and scrub the inner sides of vases. Wash roots of flowers and plants thoroughly as mosquito eggs can stick to them easily.
Once a week
v     Clear fallen leaves and stagnant water in your scupper drains and garden. These leaves could collect water or cause blockages to the drains, thus resulting in the buildup of stagnant water.

v     Clear any stagnant water in your air cooler unit.

Once a month
v     Add prescribed amounts of sand granular insecticide into vases, gully traps and roof gutters, even if they are dry.
v     Clear away fallen leaves in roof gutters and apron drains. If structurally feasible, remove the roof gutters.