Articles on Dengue fever

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For viruses like dengue, being injected with the pathogen as in a vaccine can open the door to secondary infections. from www.shutterstock.com.au

Explainer: what are antibodies and why are viruses like dengue worse the second time?

Our immune system protects us but when it comes to some mosquito-borne disease, it can work against us. What are the implications for the development of a Zika virus vaccine?
The outbreak of Zika virus in Brazil had Australian travellers on alert but transmission is only possible in tropical Queensland. Cameron Webb

Common Australian mosquitoes can’t spread Zika

New research shows common local mosquitoes aren’t able to spread Zika. This means Australia is unlikely to see a major outbreak of the disease. But a risk remains in northern Queensland.
Municipal workers wait before spraying insecticide to prevent the spread of Aedes aegypti mosquito at Sambodrome in Rio de Janeiro, Brazil, January 26, 2016. Pilar Olivares/Reuters

Explainer: where did Zika virus come from and why is it a problem in Brazil?

Zika was discovered almost 70 years ago, but wasn't associated with outbreaks until 2007. So how did this formerly obscure virus wind up causing so much trouble in Brazil?
There is little doubt the virus can make it to Australia. mrfiza/Shutterstock

Does Zika virus pose a threat to Australia?

They’re small, spindly insects but their threat never dwindles – the bites of mosquitoes threaten death and disease in many parts of the world.
Detecting viruses in wild-caught mosquitoes provides intimate detail of disease transmission cycles. University of Washington SPH/Flickr

How a new test is revolutionising what we know about viruses in our midst

We monitor mosquitoes to help predict and control virus outbreaks. And a new technique for collecting mosquito saliva from the field has made the process both more sensitive and inexpensive.
An historian reading the government White Paper on developing northern Australia will realise we’re actually heading all the way back to the 1890s. andrew matthews/Flickr

Northern development plan shows Australia’s fraught vision of our tropics

The federal government's recent White Paper on developing northern Australia has disturbing echoes of the 1890s, a time when unbridled capitalism and indentured labour developed the North.
Female Aedes aegypti mosquitoes transmit dengue fever when enjoying blood meals. James Gathany

Modifying mosquitoes to stop transmission of dengue fever

Annihilate the Aedes aegypti mosquito population and you'd stop dengue fever from infecting up to 100 million people worldwide annually. Here are some high-tech methods under development.
For exposed skin, there really isn’t an alternative to topical insect repellents. LoloStock/Flickr

Chemical or natural: what’s the best way to repel mozzies?

Mosquitoes need blood to survive. And what better place to get a good meal than a slow, tasty human. Mosquitoes aren’t just annoying. Every year around 5,000 Australians get sick following a mosquito bite…
The pest hides out in pot plants and rainwater tanks, and feeds on humans and pets. Clivid/Flickr

Aussie mozzie found in urban California

An Australian native mosquito has for the first time been detected in urban California, in the latest wave of mozzies hitching…

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