Group 1 - The article emphasizes the importance of mosquito control in preventing Chikungunya virus transmission, highlighting two main strategies: active killing and passive defense [1][2] - Active killing methods include electric mosquito repellent, traditional mosquito coils, and aerosol insecticides, while passive defense involves using repellents containing DEET and IR3535 to reduce mosquito bites [1][2] - The article mentions that products claiming to have mosquito-killing or repelling effects must obtain a pesticide registration number according to national regulations, ensuring consumer safety [1] Group 2 - Consumers are advised to choose products based on their environment, such as electric mosquito liquid for indoor use and mosquito coils for outdoor spaces [2] - It is crucial to eliminate mosquito breeding sites by clearing standing water in household items like flowerpot trays and discarded containers [2] - Recommended passive defense methods include using repellents with active ingredients like DEET and IR3535, which interfere with mosquitoes' olfactory systems to reduce bites [3] Group 3 - The article suggests that physical barriers, such as wearing light-colored long-sleeved clothing and using screens or mosquito nets, can enhance passive defense against mosquitoes [3] - It is advised to apply mosquito repellent directly to the skin rather than clothing, as some ingredients may irritate skin if they enter bite wounds [3]