基于SEIR-SEI模型预测广东省输入性基孔肯雅热再传播风险
徐利珊 , 李柯柯 , 于米铼 , 植秋怡 , 安胜利
南方医科大学学报 ›› 2026, Vol. 46 ›› Issue (07) : 1696 -1702.
基于SEIR-SEI模型预测广东省输入性基孔肯雅热再传播风险
Re-transmission risk prediction of imported Chikungunya fever in Guangdong Province using the SEIR-SEI model
目的 评估广东省输入基孔肯雅热(CHIKF)病例后不同干预措施的效果,为疫情防控提供量化的决策支持。 方法 以广东省输入性疫情及蚊媒监测数据为基础,构建人蚊耦合SEIR-SEI传播动力学模型,通过调控环境容纳系数()、平均叮咬次数()及发病确诊间隔(),模拟无干预、单一干预(灭蚊/防蚊/病例隔离)及综合干预3种情景下的本地传播风险与防控阈值。 结果 2008~2019年广东省共报告65例输入性病例。模拟结果显示,单一干预措施防控效果有限,需将降至≤0.001或降至≤0.1次才能阻断疫情再传播,缩短发病确诊间隔可显著降低发病高峰并缩短流行周期。综合干预效果显著优于单一干预,阻断传播的临界阈值随参数组合变化,当≤0.5时,需满足≤0.4次且≤3 d,或采取更为严格的替代组合。 结论 广东省输入性疫情需通过综合干预阻断本地传播,建议将控制在0.5以下,控制在0.4次以下,在3 d内较好,相关阈值可为同类疫情防控提供参考。
Objective To evaluate the effectiveness of different intervention measures against transmission of imported Chikungunya fever (CHIKF) in Guangdong Province to provide quantitative decision-making support for epidemic prevention and control. Methods Based on the imported epidemic and mosquito vector monitoring data in Guangdong Province, a human-mosquito coupling SEIR-SEI transmission dynamics model was constructed. By adjusting the environmental carrying coefficient (k), the average number of bites (θ) and the interval between onset and diagnosis (), the local transmission risk and prevention and control threshold were simulated in scenarios of no intervention, single intervention (mosquito control/anti-mosquito/case isolation) and comprehensive intervention. Results A total of 65 imported cases were reported in Guangdong Province from 2008 to 2019. The simulation results showed limited prevention and control effect of a single intervention measure, and reducing k to below 0.001 or θ to below 0.1 was essential to block re-transmission of the epidemic; shortening could significantly reduce the incidence peak and shorten the epidemic cycle. The effect of comprehensive intervention was significantly better than that of single intervention. The critical threshold of blocking transimission varied with the combination of parameters. For a k value no greater than 0.5, θ needed to be controlled below 0.4 and below 3 days, or a more stringent alternative combination should be adopted. Conclusion Comprehensive intervention measures should be implemented to contain imported CHIKF epidemics in Guangdong Province. It is recommended that k be controlled below 0.5, θ below 0.4, and within 3 days, and these thresholds can provide reference for prevention and control of similar epidemics.
| [1] |
国家中医药局综合司, 国家卫生健康委办公厅. 基孔肯雅热诊疗方案(2025年版)[J]. 新发传染病电子杂志, 2025, 10(4): 89-93. |
| [2] |
Chikungunya virus disease-Global situation[EB/OL][2025-10-23]. doi:10.12968/indn.2025.8.4 |
| [3] |
林 苗, 李 华, 黄吉城, |
| [4] |
陈 斌, 陈秋兰, 李 昱, |
| [5] |
黄 鹂, 张显光, 张 文, |
| [6] |
熊益权, 陈 清. 1978~2014年我国登革热的流行病学分析[J]. 南方医科大学学报, 2014, 34(12): 1822-5. |
| [7] |
佛山市顺德区卫生健康局2025年7月15日发布《情况通报》_广东省疾病预防控制中心网站[EB/OL][2025-10-23]. |
| [8] |
广东省基孔肯雅热监测信息( 2025年9月14日-20日)_广东省疾病预防控制中心网站[EB/OL][2025-10-23]. |
| [9] |
冯 云, 张海林. 中国基孔肯雅热流行病学和病原生物学研究进展[J]. 中国热带医学, 2025, 25(5): 582-7. doi:10.13604/j.cnki.46-1064/r.2025.05.09 |
| [10] |
熊 曦, 黄文龙, 林桂鸿, |
| [11] |
廖春晓, 杜海平, 王 波, |
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
李国群, 廖 瑜, 洪秀琴, |
| [17] |
|
| [18] |
广东省统计局-广东统计年鉴 2024年[EB/OL][2025-10-23]. |
| [19] |
高巨真, 曾昭玉, 薛景珉, |
| [20] |
段恒璐, 杨 军, 王义冠, |
| [21] |
张韶华, 刘 强, 刘 阳, |
| [22] |
邢学森, 王云甫. 基孔肯雅热: 全面科学认识与防控策略[J]. 公共卫生与预防医学, 2025, 36(5): 1-7. |
| [23] |
何 展, 吴文锋, 杨适乡, |
| [24] |
叶健忠, 史 蕾, 刘春芳, |
| [25] |
林 苗, 李 华, 戴 俊, |
| [26] |
阳 帆, 张仁利, 黄达娜, |
| [27] |
深圳湾口岸检出基孔肯雅热传染病-中新网[EB/OL][2025-10-23]. |
| [28] |
李小波, 黄吉城, 苏锦坤, |
| [29] |
深圳口岸检出2014年首例基孔肯雅热输入病例--时政--人民网[EB/OL][2025-10-23]. |
| [30] |
深圳口岸检疫发现今年首例基孔肯雅热病例 | 国际旅行卫生健康咨询网[EB/OL][2025-10-23]. |
| [31] |
深圳口岸检出年内首例输入性基孔肯雅热病例[J]. 口岸卫生控制, 2016, 21(5): 8. |
| [32] |
朱旗莉, 潘亮亮, 陈戊申, |
| [33] |
甄若楠, 苏文哲, 廖鑫龙, |
| [34] |
出入境当心了!深圳湾口岸检出一例基孔肯雅热病例_深圳新闻网[EB/OL][2025-10-23]. |
| [35] |
罗湖口岸发现两例输入性基孔肯雅热病例_深圳新闻网[EB/OL][2025-10-23]. |
| [36] |
珠海口岸首次检出输入性基孔肯雅热病例_央广网[EB/OL][2025-10-23]. |
| [37] |
又是它!珠海口岸再次检出输入性基孔肯雅热病例_南方plus_南方+[EB/OL][2025-10-23]. |
| [38] |
今年第三例!拱北海关检出输入性基孔肯雅热病例_南方plus_南方+[EB/OL][2025-10-23]. |
| [39] |
李幸乐, 金湘东, 马建敏, |
| [40] |
芦瑞鹏, 程明基, 罗 傲, |
| [41] |
广东省卫生统计学会. 第37 期学术沙龙预告「基孔肯雅热等传染病的统计分析方法」[EB/OL][2025-10-29]. |
| [42] |
|
| [43] |
不灭的灯火,不歇的防线!腾冲社区夏日战“蚊”[EB/OL][2025-11-5]. |
| [44] |
基孔肯雅热疫情可防可控!记住做好这三点[EB/OL][2025-11-5]. |
| [45] |
佛山市人民政府门户网站[EB/OL][2025-11-5]. |
| [46] |
|
| [47] |
卢 娜, 周红宁. 我国登革热重要媒介白纹伊蚊抗药性研究进展[J]. 热带病与寄生虫学, 2022, 20(3): 165-9. |
| [48] |
|
广东省基础与应用基础研究基金(2022A1515012152)
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| 〈 |
|
〉 |