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Australia may be at risk of a widespread outbreak of Zika or dengue unless the exotic mosquitos that can cause these diseases are kept out of our suburbs, finds research published today in the Sax Institute's Public Health Research & Practice journal.

鈥淲hile we can鈥檛 prevent people infected with Zika or dengue coming to Australia, we can prevent the establishment of exotic mosquitoes species (such as Aedes aegypti and the Asian tiger mosquito Aedes albopictus), so that widespread outbreaks can鈥檛 occur,鈥� said lead author , Medical Entomologist at University of Sydney and NSW Health Pathology.

鈥淲e need to do more to make sure these exotic mosquitoes don鈥檛 establish themselves here.

鈥淲ith many Australians travelling back and forth to South East Asia, particularly Bali, during the holidays there is a risk they will be exposed to mosquito-borne diseases. Worse still, it is very easy for people to unwittingly bring exotic mosquito eggs back into Australia via water bottles, vases or other belongings.

鈥淚f these exotic mosquito species find a way to our suburbs and become established, it creates the perfect conditions for a local outbreak of Zika or dengue.

鈥淲e need to do everything possible to prevent these mosquitoes from establishing themselves here in NSW and other parts of Australia. We need to expand strategic surveillance to include suburban areas as well as wetlands, so that we鈥檙e alerted as soon as possible to their presence. With local, State and Federal health authorities working closer together to respond to the discovery of these mosquitoes, we can ensure we remain free of any significant local disease outbreaks," he said.

Dr Webb has also investigated the safe and effective use of mosquito repellents in another聽Public Health Research & Practicepaper, and recommended Australians at home and abroad should choose a repellent containing DEET, picaridin or 'oil of lemon-eucalyptus鈥� rather than botanical extract-based repellents.

鈥淲ith mosquito season beginning across most of the country and with many Australians planning to visit South East Asia during the holiday season, it鈥檚 essential that everyone knows the best ways to prevent mosquito bites. Repellents are a cheap, effective and safe ways to yourself, but you鈥檝e got to choose and use the repellents properly to provide effective protection.

鈥淯nless you are prepared to reapply every one to two hours, it鈥檚 safer to avoid botanical extract-based repellents available from health food stores, tackle shops and the 鈥榟omebrews鈥� available from local markets. Despite the name, natural repellents are not necessarily a healthy alternative 鈥� not only do they not last as long, they鈥檙e more likely to cause skin irritation than chemical-based brands.

鈥淎ustralians at home and abroad should instead choose a repellent containing DEET, picaridin or 'oil of lemon-eucalyptus'. There are hundreds of different formulations to choose from in the supermarket or the pharmacy that will keep you and your family safe,鈥� said Dr Webb.聽