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Dengue Prevention Guide

Aedes mosquitoes breed in clean, stagnant water and bite mostly at dawn and dusk. Most breeding sites are avoidable with a few habits at home.

At Home

Break the breeding cycle before it starts — most Aedes eggs are laid within a few metres of where people sleep.

In Your Community

Report waterlogging and stagnant water near you so field teams can act before mosquitoes hatch.

Personal Protection

Reduce bites during peak Aedes activity hours — early morning and just before dusk.

Do this every 3 days

Household Checklist

Aedes eggs can hatch in under a week — a short routine check breaks the cycle.

Empty standing water

Check buckets, flowerpot trays, and rooftops — even a bottle cap of water is enough.

Cover water containers

Tightly seal tanks and drums used for storage to block egg-laying sites.

Clear discarded items

Tyres, bottles, and containers that collect rain are common breeding spots — dispose of them properly.

Change vase & pet-bowl water

Refresh flower vases, pet water bowls, and fountains at least twice a week.

Use screens and nets

Install mesh on windows and sleep under treated nets, especially at dawn and dusk.

Fix drainage around your home

Clear gutters and side-drains so rainwater doesn't pool near the foundation.

Watch for electrical hazards

Avoid contact with poles or wiring standing in floodwater — report it immediately.

Report waterlogged areas

Use the public portal to flag stagnant water near you — it routes straight to the nearest field team.

Learn more

Prevention Tips

Search, read, share, and bookmark practical tips curated by the health team.

Know the Warning Signs
General

Know the Warning Signs

Learn the warning signs of dengue and seek medical attention promptly if symptoms become serious.

Common dengue symptoms can include high fever, severe headache, pain behind the eyes, muscle and joint pain, nausea, vomiting, and rash. Warning signs can become more serious around the time a fever decreases. Seek medical care promptly if symptoms are severe or worsening, and follow advice from a qualified healthcare professional.
Report Waterlogged Areas
Community

Report Waterlogged Areas

Report stagnant water and waterlogged areas through the public reporting system so authorities can take action quickly.

If you notice persistent waterlogging, stagnant water, blocked drains, or areas where mosquitoes may breed, report the location through the DWMS reporting system. Include the location and a clear photo when possible. Early reporting helps authorities identify high-risk areas and take appropriate action.
Use Screens and Nets
Personal Protection

Use Screens and Nets

Use window screens, door screens, and mosquito nets to reduce mosquito bites inside your home.

Protect yourself and your family from mosquito bites by using properly fitted window and door screens. Use mosquito nets when sleeping, especially for children and people who are sick. Wear long-sleeved clothing and use mosquito repellent when appropriate.
Clear Discarded Items
At Home

Clear Discarded Items

Remove discarded bottles, cans, tires, plastic containers, and other items that can collect rainwater.

Do not allow discarded items to collect rainwater around your home. Regularly remove or properly dispose of bottles, cans, plastic containers, tires, coconut shells, and other objects that can hold water. Keep your yard, rooftop, drains, and surrounding areas clean.
Cover Water Containers
At Home

Cover Water Containers

Keep water storage containers tightly covered to prevent Aedes mosquitoes from laying eggs.

Always keep buckets, drums, tanks, and other water storage containers tightly covered. Check that there are no gaps where mosquitoes can enter. Clean containers regularly and avoid storing unnecessary water around your home.
Empty Standing Water
At Home

Empty Standing Water

Empty water from buckets, flowerpots, trays, tires, and other containers at least once every 3 days to prevent mosquitoes from breeding.

Aedes mosquitoes can breed in small amounts of stagnant water. Regularly inspect your home, balcony, rooftop, garden, and surrounding areas. Empty and clean buckets, flowerpots, trays, tires, bottles, and other containers that can collect rainwater. Do this at least once every 3 days, especially during the rainy season.
Know the signs

When to See a Doctor

Dengue can escalate quickly — the virus damages blood vessels and can cause internal bleeding in severe cases. Seek medical attention promptly if you or a family member develops these symptoms, especially during peak season.

High fever Severe headache Joint & muscle pain Skin rash Nausea & vomiting Bleeding gums or nose
Find a Nearby Hospital

Myths vs. Facts

Myth: Dengue only spreads in dirty water.
Fact: Aedes mosquitoes prefer clean, stagnant water — buckets, vases, and rooftops are common sites.
Myth: Fogging alone stops dengue.
Fact: Fogging kills adult mosquitoes only — larviciding at the breeding source is what actually breaks the cycle.
Myth: You can only get dengue once.
Fact: There are 4 dengue serotypes — a second infection can be more severe than the first.