What should you know about dengue virus prevention?

Dengue is spread by infected mosquitoes. Protection matters during the day as well as at night because the mosquitoes that transmit dengue may bite in daylight. A person who develops dengue can also infect mosquitoes that bite them, allowing the virus to continue circulating.

Prevention is especially useful around homes, workplaces and travel areas where water can collect. Dengue fever may cause fever, headache, joint pain, muscle aches or chills; these symptoms can also have other causes.

Use a mosquito repellent as directed, wear loose clothing that covers skin, and use screens or air conditioning where available. Sleep under a mosquito net if the room is open or unscreened. Empty, cover or clean containers that hold water, including plant saucers, buckets and outdoor items. Keep water storage securely covered and remove rubbish that can collect rainwater.

If you feel unwell after possible exposure, arrange a GP Consultation and mention recent travel, mosquito bites and the start of symptoms. Avoid taking medicines containing aspirin or ibuprofen until a clinician advises you, because dengue can increase bleeding risk.

Seek urgent medical help for severe abdominal pain, repeated vomiting, bleeding from the nose or gums, blood in vomit or stool, marked weakness, breathing difficulty, confusion or unusual sleepiness. Warning signs can appear as fever settles, so do not assume improvement means the illness is over.

Ask which repellent is suitable for you, whether your symptoms need a dengue test, which pain relievers are appropriate, and how to protect household members from mosquito bites while you recover.