Mozzwise Briefing

Hong Kong has mosquito activity from March through November, with peak abundance during the hot, wet months of May through September. Country parks, construction sites, and areas with poor drainage are key breeding sites. The densely urban environment provides ample breeding habitat in air conditioning drip trays and container water.

Dengue fever is the primary concern, though most cases are imported. Local transmission events occur periodically. The government conducts intensive surveillance and vector control. Overall risk is low compared to tropical Southeast Asian destinations.

Aedes albopictus is the dominant vector species in Hong Kong, established throughout the territory. Aedes aegypti is less common. The Ovitrap Index is used as a public surveillance measure to track mosquito abundance across districts.