Dengue is a mosquito-borne viral disease transmitted primarily by the bite of an infected Aedes aegypti mosquito. It is common in tropical countries like the Philippines, especially during the rainy season, when stagnant water allows mosquitoes to breed. The virus enters the bloodstream after a mosquito bite and begins to affect the body’s immune system.

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The illness usually starts with sudden high fever, severe headache, pain behind the eyes, joint and muscle pain, nausea, and sometimes a skin rash. Because of the intense muscle and joint pain, dengue is sometimes called “breakbone fever.” Symptoms typically last for several days, and while many cases are mild, some can worsen.

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In severe cases, dengue may develop into severe dengue (also known as dengue hemorrhagic fever), which can cause bleeding, low platelet count, difficulty breathing, and dangerously low blood pressure. Early detection and proper medical care are important to prevent complications. There is no specific cure for dengue, so prevention focuses on eliminating mosquito breeding sites, keeping surroundings clean, and protecting oneself from mosquito bites.