DSpace university logo mark
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > 125 国際健康開発研究科・熱帯医学・グローバルヘルス研究科 > 125 学術雑誌論文 >

Implementing a vector surveillance-response system for chagas disease control: a 4-year field trial in Nicaragua

ファイル 記述 サイズフォーマット
IDP6_18.pdf1.13 MBAdobe PDF本文ファイル

タイトル: Implementing a vector surveillance-response system for chagas disease control: a 4-year field trial in Nicaragua
著者: Yoshioka, Kota / Tercero, Doribel / Pérez, Byron / Nakamura, Jiro / Pérez, Lenin
発行日: 2017年 3月 6日
出版者: BioMed Central
引用: Infectious Diseases of Poverty, 6, 18; 2017
抄録: Background: Chagas disease is one of the neglected tropical diseases (NTDs). International goals for its control involve elimination of vector-borne transmission. Central American countries face challenges in establishing sustainable vector control programmes, since the main vector, Triatoma dimidiata, cannot be eliminated. In 2012, the Ministry of Health in Nicaragua started a field test of a vector surveillance-response system to control domestic vector infestation. This paper reports the main findings from this pilot study. Methods: This study was carried out from 2012 to 2015 in the Municipality of Totogalpa. The Japan International Cooperation Agency provided technical cooperation in designing and monitoring the surveillance-response system until 2014. This system involved 1) vector reports by householders to health facilities, 2) data analysis and planning of responses at the municipal health centre and 3) house visits or insecticide spraying by health personnel as a response. We registered all vector reports and responses in a digital database. The collected data were used to describe and analyse the system performance in terms of amount of vector reports as well as rates and timeliness of responses. Results: During the study period, T. dimidiata was reported 396 times. Spatiotemporal analysis identified some high-risk clusters. All houses reported to be infested were visited by health personnel in 2013 and this response rate dropped to 39% in 2015. Rates of insecticide spraying rose above 80% in 2013 but no spraying was carried out in the following 2 years. The timeliness of house visits improved significantly after the responsibility was transferred from a vector control technician to primary health care staff. Conclusions: We argue that the proposed vector surveillance-response system is workable within the resource-constrained health system in Nicaragua. Integration to the primary health care services was a key to improve the system performance. Continual efforts are necessary to keep adapting the surveillance-response system to the dynamic health systems. We also discuss that the goal of eliminating vector-borne transmission remains unachievable. This paper provides lessons not only for Chagas disease control in Central America, but also for control efforts for other NTDs that need a sustainable surveillance-response system to support elimination.
キーワード: Chagas disease / Nicaragua / Programme integration / Surveillance-response system / Triatoma dimidiata / Vector control
URI: http://hdl.handle.net/10069/37472
DOI: 10.1186/s40249-016-0225-7
権利: © The Author(s). 2017. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:125 学術雑誌論文

引用URI : http://hdl.handle.net/10069/37472



Valid XHTML 1.0! Copyright © 2006-2015 長崎大学附属図書館 - お問い合わせ Powerd by DSpace