关键词: 基孔肯雅热, 输入性病例, 本土传播, 传播机制, 防控策略

Abstract: Chikungunya fever is an acute mosquito⁃borne infectious disease caused by the Chikungunya virus（CHIKV） and transmitted primarily by Aedes mosquitoes. The main clinical manifestations include fever，rash，and joint and muscle pain. The disease exhibits distinct epidemiological features and urban transmission cycles，posing a high infection risk to human populations. Factors such as viral genetic mutations，accelerated globalization，and climate warming have driven the global spread of chikungunya fever in recent years. To date，chikungunya outbreaks have been reported in 119 countries and regions，with an estimated annual cumulative case count exceeding 500 000. Due to the absence of approved commercial vaccines or effective antiviral therapies，Chikungunya fever continues to pose a significant threat to human health，public health systems，and socioeconomic development. Currently，the global spread of chikungunya fever is becoming increasingly severe. Notably，the 2025 outbreak in Foshan，Guangdong􀆼linked to imported cases and subsequent local transmission􀆼 has underscored the urgent need for enhanced prevention and control measures in China. This paper systematically reviews the global and domestic epidemiological status of chikungunya fever，its transmission routes and local transmission characteristics，underlying mechanisms and influencing factors，as well as comprehensive prevention and control strategies. The study aims to provide valuable insights for the scientific prevention and control of epidemic importation and spread in China and for safeguarding public health.

Key words: Chikungunya fever, imported cases, local transmission, transmission mechanisms, prevention and control strategies