How the Rainy Season Fuels Dengue Outbreaks


June 13, 2025

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June marks the beginning of the rainy season in the Philippines. As the skies darken and rain begins to fall more frequently, the risk of dengue fever surges across the country. That’s why Dengue Awareness Month is crucial—it reminds us that early prevention and vigilance can save lives. But why does this happen, and what can we do to protect ourselves and our communities?

Dengue is a mosquito-borne viral infection transmitted by the Aedes aegypti mosquito. These mosquitoes thrive in urban areas, especially where stagnant water collects.

Dengue causes symptoms such as:

  • High fever

  • Severe headaches

  • Pain behind the eyes

  • Muscle and joint pain

  • Skin rashes

  • Nausea or vomiting

In some cases, it can develop into severe dengue, which may lead to bleeding, organ failure, and even death.

The connection between rain and dengue lies in the mosquito’s breeding habits. Here’s how the rainy season contributes to increased dengue cases:

  • More Breeding Grounds Rainwater collects in unused containers, clogged gutters, flower pots, trash, and any object that can hold even a small amount of water. These become perfect breeding sites for dengue-carrying mosquitoes.

  • Warmer Temperatures + Humidity While rain cools the environment slightly, the tropical climate remains warm and humid, which speeds up both mosquito reproduction and the development of the virus inside the mosquito.

  • More Active Mosquitoes Mosquitoes live longer and are more active in warm, moist environments, meaning they bite more often and spread the virus more efficiently.

Prevention starts at home. Here are some easy but effective ways to reduce your risk of dengue this rainy season:

  • Regularly inspect your surroundings

    • Empty and clean water containers weekly.

    • Cover water storage tanks and drums.

  • Use Mosquito Protection

    • Apply mosquito repellent, especially on exposed skin.

    • Use mosquito nets or screens on windows and doors.

Simple steps can go a long way in keeping our families, neighborhoods, and communities safe. Remember, prevention is always better than cure, not just for dengue, but for many other illnesses. Practicing good hygiene and maintaining a healthy lifestyle can significantly reduce the risk of disease. By taking preventive measures today, you can safeguard your  health and reduce the risk of expensive medical treatments that may exceed your financial means. When life takes an unexpected turn, having insurance ensures you have the support you need when it matters most. For more information on health insurance plans, visit https://plgic.ph/PDHealthInsurancePlans.




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