Dengue Fever risk in Hangzhou

Dengue Fever is a viral illness spread by Aedes mosquitoes, mainly Aedes albopictus in Hangzhou. Symptoms include high fever, severe headache, pain behind the eyes, joint and muscle pain, rash, and mild bleeding. Most cases are mild, but severe dengue can be life-threatening.

Hangzhou risk factors:

• Warm, humid summers (June–October) create ideal mosquito breeding conditions.
• Urban parks, West Lake area, and residential neighborhoods have many small water containers and ornamental plants that hold stagnant water.
• Outdoor activities (evening walks, gardening) increase mosquito exposure.

Prevention steps:

1. Eliminate standing water weekly. Empty, scrub, or cover flowerpot saucers, buckets, tires, and blocked gutters. Even bottle-cap-sized water can breed mosquitoes.
2. Use EPA-registered repellents (DEET, picaridin, or oil of lemon eucalyptus) on exposed skin when outdoors, especially at dawn and dusk.
3. Wear light-colored long sleeves and pants. Treat clothing with permethrin if you spend time in parks or gardens.
4. Keep living spaces air-conditioned or use window/door screens. Sleep under a bed net if screens are missing or damaged.
5. Seek early medical care if fever develops after mosquito bites. Avoid aspirin and ibuprofen until dengue is ruled out, as they increase bleeding risk. Use acetaminophen instead.

Hangzhou’s 57/100 risk score means moderate, seasonal danger. Consistent daily habits—especially water management and personal protection—greatly reduce your risk.