An analysis of surveillance results of the dengue vector Aedes albopictus in Wuhan, China, 2017

doi:10.11853/j.issn.1003.8280.2020.02.022

Abstract

Abstract: Objective To investigate the population density changes of larvae and adults of the dengue vector Aedes albopictus in Wuhan, China, and to provide a scientific basis for the strategy of Aedes vector control. Methods From April to November, 2017, the density of Ae. albopictus larvae was monitored by the Breteau index (BI) method, and that of Ae. albopictus adults was monitored by the double-layered mosquito net method and the light trap method. A database was established using Excel 2013 software. An analysis of variance was performed using SPSS 21.0 software to compare their densities between different habitats and months. The chi-square test was used for comparison of rates. Results A total of 145 Ae. albopictus were captured by light traps; the mean density was 0.52 mosquito/light·night, and the density was highest in parks (0.86 mosquito/light·night) and lowest in rural houses (0.23 mosquito/light·night). A total of 165 water containers positive for Ae. albopictus were found by the BI method; the mean BI was 10.30, and the highest BI (17.00) was observed in July. A total of 213 Ae. albopictus adults were captured by the double-layered mosquito net method; the mean density was 2.22 mosquitoes/net·hour, and the density exhibited a single peak (4.33 mosquitoes/net·hour), which occurred in September. Conclusion The high density and wide distribution of Ae. albopictus in Wuhan indicate that there is a risk of dengue outbreak in the area. It is suggested that relevant authorities should strengthen mosquito vector surveillance and environmental management to prevent local cases caused by imported dengue fever.

Key words: Dengue fever, Aedes albopictus, Surveillance, Wuhan

摘要： 目的掌握武汉市登革热媒介白纹伊蚊幼蚊和成蚊种群密度变化，为媒介伊蚊防制对策提供科学依据。方法 2017年4-11月，采用布雷图指数（BI）法监测白纹伊蚊幼蚊密度，采用双层叠帐法和诱蚊灯法监测白纹伊蚊成蚊密度。采用Excel 2013软件建立数据库，SPSS 21.0软件对白纹伊蚊不同生境的密度差异以及不同月份的密度差异进行方差分析，率的比较采用χ²检验。结果诱蚊灯法共采集145只白纹伊蚊，平均密度为0.52只/（灯·夜），其中公园密度最高，郊区农户密度最低，分别为0.86和0.23只/（灯·夜）；BI法共发现阳性积水165处，平均BI为10.30，其中7月最高，BI为17.00；双层叠帐法共采集213只白纹伊蚊成蚊，平均密度为2.22只/（顶·h），密度呈单峰型，高峰出现在9月，蚊密度为4.33只/（顶·h）。结论武汉市白纹伊蚊密度较高，分布广，当地存在登革热疫情暴发风险。建议相关部门应加强蚊媒密度监测及其环境治理，防止输入性登革热病例引起的本地病例发生。

关键词: 登革热, 白纹伊蚊, 监测, 武汉市

CLC Number:

LIU Jing, CHEN Xiao-min, GUO Hui, DING Hao, TIAN Jun-hua. An analysis of surveillance results of the dengue vector Aedes albopictus in Wuhan, China, 2017[J]. Chines Journal of Vector Biology and Control, 2020, 31(2): 223-226.

柳静, 陈晓敏, 郭慧, 丁浩, 田俊华. 武汉市2017年登革热媒介白纹伊蚊监测分析[J]. 中国媒介生物学及控制杂志, 2020, 31(2): 223-226.

References

[1] Li Y,Wu SY. Dengue:what it is and why there is more[J]. Sci Bull,2015,60(7):661-664. DOI:10.1007/s11434-015-0756-5.
[2] World Health Organization. Global strategy for dengue prevention and control 2010-2012[R]. Geneva:WHO,2012:1-34.
[3] 邹钦. 广东省2014年登革热疫情防控实践与思考[J]. 中华卫生杀虫药械,2015,21(6):630-632. Zou Q. Practice and thinking for dengue fever epidemic prevention and control of Guangdong province in 2014[J]. Chin J Hyg Insect Equip,2015,21(6):630-632.
[4] World Health Organization. Update on the dengue situation in the western Pacific Region,northern Hemisphere[EB/OL]. (2018-02-27)[2019-07-25]. http://www.wpro.who.int/emerging_diseases/dengue_biweekly_report_20180227.pdf.
[5] 景钦隆,王鸣. 登革热媒介控制研究进展[J]. 疾病监测,2016,31(10):808-813. DOI:10.3784/j.issn.1003-9961.2016.10.004. Jing QL,Wang M. Progress in research of dengue fever vector control[J]. Dis Surveill,2016,31(10):808-813. DOI:10.3784/j.issn.1003-9961.2016.10.004.
[6] 陆宝麟,陈汉彬,瞿逢伊,等. 中国动物志. 昆虫纲. 第8卷. 双翅目:蚊科(上)[M]. 北京:科学出版社,1997:25-129. Lu BL,Chen HL,Qu FY,et al. Fauna sinica,insecta,vol. 8,diptera:culicidae (volume 1)[M]. Beijing:Science Press,1997:25-129.
[7] 陆宝麟,许锦江,俞渊,等. 中国动物志. 昆虫纲. 第9卷. 双翅目:蚊科(下)[M]. 北京:科学出版社,1997:75-99. Lu BL,Xu JJ,Yu Y,et al. Fauna sinica,insecta,vol. 9,diptera:culicidae (volume 2)[M]. Beijing:Science Press,1997:75-99.
[8] 陆宝麟. 中国重要医学动物鉴定手册[M]. 北京:人民卫生出版社,1982:1-159. Lu BL. Identification manual of important medical animal in China[M]. Beijing:People's Medical Publishing House,1982:1-159.
[9] Guo YH,Lai SJ,Liu XB,et al. Governmental supervision and rapid detection on dengue vectors:an important role for dengue control in China[J]. Acta Trop,2016,156:17-21. DOI:10.1016/j.actatropica.2015.12.011.
[10] 侯祥,刘可可,刘小波,等. 气候因素对广东省登革热流行影响的非线性效应[J]. 中国媒介生物学及控制杂志,2019,30(1):25-30. DOI:10.11853/j.issn.1003.8280.2019.01.005. Hou X,Liu KK,Liu XB,et al. Nonlinear effects of climate factors on dengue epidemic in Guangdong province,China[J]. Chin J Vector Biol Control,2019,30(1):25-30. DOI:10.11853/j.issn.1003.8280.2019.01.005.
[11] 胡志刚,严子锵,江毅民,等. 广州市近年来登革热及其媒介防治情况分析[J]. 中华卫生杀虫药械,2009,15(5):375-378. Hu ZG,Yan ZQ,Jiang YM,et al. Analysis on the dengue fever and its vector control in Guangzhou city in recent years[J]. Chin J Hyg Insect Equip,2009,15(5):375-378.
[12] Xu L,Stige LC,Chan KS,et al. Climate variation drives dengue dynamics[J]. Proc Natl Acad Sci USA,2017,114(1):113-118. DOI:10.1073/pnas.1618558114.
[13] 樊景春,刘起勇. 气候变化对登革热传播媒介影响研究进展[J]. 中华流行病学杂志,2013,34(7):745-749. DOI:10.3760/cma.j.issn.0254-6450.2013.07.020. Fan JC,Liu QY. Research progress on the effect of climate change on dengue vector[J]. Chin J Epidemiol,2013,34(7):745-749. DOI:10.3760/cma.j.issn.0254-6450.2013.07.020.
[14] 李菊林,朱国鼎,周华云,等. 不同温度下白纹伊蚊发育情况的观察[J]. 中国血吸虫病防治杂志,2015,27(1):59-61. DOI:10.16250/j.32.1374.2014078. Li JL,Zhu GD,Zhou HY,et al. Effect of different temperatures on development of Aedes albopictus[J]. Chin J Schisto Control,2015,27(1):59-61. DOI:10.16250/j.32.1374.2014078.
[15] Jia PF,Chen X,Chen J,et al. How does the dengue vector mosquito Aedes albopictus respond to global warming?[J]. Parasit Vectors,2017,10(1):140. DOI:10.1186/s13071-017-2071-2.
[16] 易彬樘,张治英,徐德忠,等. 气候因素对登革热媒介伊蚊密度影响的研究[J]. 中国公共卫生,2003,19(2):129-131. DOI:10.3321/j.issn:1001-0580.2003.02.001. Yi BT,Zhang ZY,Xu DZ,et al. Influence of climate factors on vector Aedes density of dengue[J]. Chin J Public Health,2003,19(2):129-131. DOI:10.3321/j.issn:1001-0580.2003.02.001.
[17] 江毅民,严子锵,胡志刚,等. 气候因素用于白纹伊蚊密度预测的探索[J]. 热带医学杂志,2014,14(2):235-237. Jiang YM,Yan ZQ,Hu ZG,et al. Predicting the population density of Aedes albopictus according to meteorological data[J]. J Trop Med,2014,14(2):235-237.
[18] 段良松,刘卫,吴红卫,等. 湖南省郴州市2008-2013年登革热监测与媒介调查分析[J]. 中国媒介生物学及控制杂志,2016,27(3):292-295. DOI:10.11853/j.issn.1003.8280.2016. 03.020. Duan LS,Liu W,Wu HW,et al. Surveillance of dengue fever from 2008 to 2013 in Chenzhou,Hunan province,China[J]. Chin J Vector Biol Control,2016,27(3):292-295. DOI:10.11853/j.issn.1003.8280.2016.03.020.
[19] 黎祖秋,汤洪洋,屈志强,等. 2015-2018年南宁市登革热媒介伊蚊监测结果分析和登革热风险评估[J]. 应用预防医学,2018,24(6):415-420. DOI:10.3969/j.issn.1673-758X.2018. 06.001. Li ZQ,Tang HY,Qu ZQ,et al. Analysis of surveillance results of dengue vector Aedes mosquitoes and assessment the risk of dengue fever in Nanning in 2015-2018[J]. Appl Prev Med,2018,24(6):415-420. DOI:10.3969/j.issn.1673-758X.2018. 06.001.
[20] 郑能雄,罗斌,林云钦,等. 不同材料容器与水质对白纹伊蚊孳生状况的影响[J]. 海峡预防医学杂志,2002,8(6):17-20. DOI:10.3969/j.issn.1007-2705.2002.06.006. Zheng NX,Luo B,Lin YQ,et al. The influence of different material containers and water quality on the breeding of Aedes albopictus[J]. Strait J Prev Med,2002,8(6):17-20. DOI:10.3969/j.issn.1007-2705.2002.06.006.
[21] 郑能雄,林云钦,罗斌,等. 福州市登革热蚊媒种群生态学研究[J]. 海峡预防医学杂志,2003,9(2):8-11. DOI:10.3969/j.issn.1007-2705.2003.02.003. Zheng NX,Lin YQ,Luo B,et al. The ecological study on the mosquito species of dengue fever in Fuzhou[J]. Strait J Prev Med,2003,9(2):8-11. DOI:10.3969/j.issn.1007-2705.2003. 02.003.