Core Viewpoint - The article emphasizes the urgent need for residents in Dongguan to install and repair screens on doors and windows to combat the spread of dengue fever and chikungunya, which are transmitted by mosquitoes, particularly the Aedes albopictus [1][2]. Group 1 - The Dongguan Disease Control Center has issued a public initiative urging citizens to take immediate action to protect their health by installing screens on doors and windows [1]. - Dengue fever and chikungunya have recently emerged in parts of Guangdong Province, posing significant health risks to the population [1]. - The Aedes albopictus mosquito, commonly known as the "flower mosquito," is the primary vector for these diseases, highlighting the need for preventive measures [1]. Group 2 - Residents are advised to close doors and windows during peak mosquito activity times, specifically in the evening and early morning, or to use screens for ventilation [1]. - It is recommended that individuals, especially vulnerable groups such as children and the elderly, use mosquito nets while sleeping to effectively block mosquitoes [1]. - The initiative encourages landlords of rental properties to proactively install mosquito prevention measures, such as screens, to help maintain a healthy community environment [1].