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目的 分析2015-2016年腾冲市疟疾疫点调查和处置情况,为阻断可能的疟疾传播提供依据。方法 以2015-2016年腾冲市网报疟疾病例为线索,对疟疾疫点进行调查处置。采用诱蚊灯通宵诱蚊法,进行媒介按蚊种群调查。采集疫点范围近2周内有发热史的当地居民和疟疾病例同行人员的外周血,用疟疾快速诊断卡进行检测。结果 2015-2016年腾冲市共报告145例输入性疟疾病例,7 d内疟疾疫点调查处置率为100%(145/145)。捕获按蚊12种共16 186只;中华按蚊为优势蚊种,占64.31%(10 410/16 186);其次是昆明按蚊,占14.15%(2 291/16 186);微小按蚊占11.66%(1 887/16 186)。对51名疟疾病例同行人员进行疟疾筛查,检出阳性1人,阳性检出率为1.96%(1/51)。结论 腾冲市存在疟疾传播媒介中华按蚊、昆明按蚊、微小按蚊等,且中华按蚊为优势种群;应进一步加强疟疾疫点调查处置,防止输入性疟疾引起的继发传播。
Objective To analyze the investigation and disposal of malaria epidemic in Tengchong City from 2015 to 2016 and provide the basis for blocking possible malaria transmission. Methods Totally malaria cases were reported in Tengchong City from 2015 to 2016 to investigate and deal with malaria epidemic. The use of mosquito lamp all-night mosquito method, the media Anonymous survey of mosquitoes. Blood samples were collected from peripheral blood of fellow residents and fellow travelers with a history of fever within the last 2 weeks of the epidemic, using a malaria rapid diagnostic card. Results A total of 145 cases of imported malaria were reported in Tengchong City from 2015 to 2016, and the investigation and treatment rate of malaria epidemic in 7 days was 100% (145/145). Anopheles sinensis was the dominant mosquito species, accounting for 64.31% (10 410/16 186); followed by An. Kunming An. Mosquito (14.15%) (2 291/16 186); Anopheles minimus 11.66% (1 887/16 186). A malaria screening test was conducted on 51 malaria counterparts, with a positive rate of 1.96% (1/51). Conclusion There are malaria vectors Anopheles sinensis, An. Kunming and Anopheles sinensis in Tengchong City, and Anopheles sinensis is the dominant species. Surveillance and disposal of malaria epidemic should be further strengthened to prevent secondary transmission caused by imported malaria.