Dengue fever is a mosquito-borne illness that can be fatal if left untreated. The disease is prevalent in many tropical and subtropical regions, including Southeast Asia, the Pacific Islands, and Central and South America. Australian travellers are at risk of contracting dengue fever when visiting these areas, and it is essential to take necessary precautions to prevent infection. The Australian government has issued a travel advisory, warning citizens of the risks associated with dengue fever and providing guidance on how to protect themselves. Travellers are advised to wear protective clothing, apply insect repellent, and stay in air-conditioned or screened areas to reduce the risk of mosquito bites. Additionally, travellers should avoid areas with high mosquito activity, such as near still water or during peak mosquito hours. It is also crucial to be aware of the symptoms of dengue fever, which include fever, headache, and joint pain. If travellers experience any of these symptoms, they should seek medical attention immediately. Dengue fever can be treated with rest, hydration, and medication, but severe cases may require hospitalization. The Australian government has also recommended that travellers take precautions against other mosquito-borne illnesses, such as Zika and chikungunya. Furthermore, travellers should ensure they have adequate travel insurance that covers medical evacuation and treatment. The risk of dengue fever is not limited to travellers, as the disease can also be spread through human-to-human contact. Therefore, it is essential for travellers to take precautions to prevent the spread of the disease upon their return to Australia. The Australian government is working closely with international health authorities to monitor the spread of dengue fever and provide guidance to travellers. In recent years, there have been several outbreaks of dengue fever in Australia, highlighting the need for continued vigilance and awareness. By taking necessary precautions and being aware of the risks, Australian travellers can reduce their risk of contracting dengue fever and stay safe while travelling abroad. Moreover, the Australian government is also conducting research to develop a vaccine against dengue fever, which is expected to be available in the near future. In the meantime, travellers are advised to rely on preventive measures, such as insect repellent and protective clothing, to reduce their risk of infection.