Dengue Fever risk in Kathmandu

Dengue Fever in Kathmandu: Your Prevention Guide

Dengue is a mosquito-borne viral infection transmitted primarily by the Aedes aegypti mosquito. Symptoms include high fever, severe headache, joint and muscle pain, rash, and in serious cases, hemorrhagic complications. Kathmandu Valley faces a moderate-high risk score of 58/100 due to several converging factors.

Why Kathmandu is vulnerable: Rapid urbanization has created dense neighborhoods with inadequate drainage and water storage. Stored water in drums, tanks, and containers serves as prime breeding sites for dengue mosquitoes. The valley's subtropical climate, with warm temperatures and monsoon rains from June through September, extends the transmission season significantly. Open construction sites, discarded tires, and neglected rooftop water tanks add to the problem. Limited municipal vector control means prevention falls largely on households.

What you can do starting today:

First, eliminate standing water around your home every three days. Empty, scrub, and overturn any container that holds water, including flower pot trays, buckets, and discarded bottles. Cover all water storage containers with tight-fitting lids.

Second, use mosquito repellent containing DEET or picaridin on exposed skin, especially during early morning and late afternoon when Aedes mosquitoes bite most actively. Apply it before leaving home and reapply as directed.

Third, install window and door screens or use mosquito nets over beds. If your home lacks screens, ensure doors are kept closed during peak biting hours.

Fourth, wear long sleeves and long pants when possible, particularly in areas with known dengue cases. Light-colored clothing is less attractive to mosquitoes.

Fifth, support community efforts. Report stagnous water in public areas to your local ward office. Participate in neighborhood cleanup drives to remove discarded items that collect rainwater.

If you develop sudden high fever with severe body pain, seek medical attention promptly. Early detection prevents complications. Kathmandu's dengue risk is real but manageable when households act consistently with these steps.