Spatial pattern assessment of dengue fever risk in subtropical urban environments: The case of Hong Kong

•Landscape metrics applied for assessing entomological dengue fever hazard.•Dengue fever risk is evaluated by adopting the IPCC’s risk conceptual framework.•Seventeen potential hotspots for dengue fever risk are identified in Hong Kong.•The underlying factors responsible for hotspots are analyzed and discussed.•Dengue fever risk maps are developed for local public health actions and planning.