Dengue fever is a viral illness transmitted by mosquitoes, primarily the Aedes aegypti species, prevalent in tropical and subtropical regions worldwide. The disease is characterized by a sudden onset of high fever accompanied by symptoms such as severe headache, pain behind the eyes, joint and muscle pain, rash, and mild bleeding.
While many cases are mild and resolve within one to two weeks, severe dengue can lead to serious complications like shock, internal bleeding, and even death.
In recent years, there has been a notable increase in dengue cases globally. In 2024, Latin America and the Caribbean experienced significant outbreaks, with over 13 million suspected cases and more than 8,100 deaths reported. Countries like Brazil and Argentina faced particularly high numbers, with Brazil anticipating over 4.2 million cases in 2025.
Similarly, regions in Asia, such as Bali, Indonesia, have reported alarming rises in cases, prompting health authorities to issue warnings and implement preventive measures.
Travelers visiting areas with active dengue transmission are advised to take precautions to prevent mosquito bites. These measures include using insect repellent, wearing protective clothing, and staying in accommodations with proper mosquito control.
It’s also important to remain vigilant for symptoms upon returning, as early detection and supportive care can significantly reduce the risk of severe complications.
For those residing in or traveling to regions where dengue is common, staying informed through local health advisories and the World Health Organization (WHO) is crucial. The WHO provides comprehensive information on dengue, including prevention strategies and updates on outbreaks.