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Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned

The first indigenous outbreak of chikungunya in Taiwan occurred in New Taipei City, northern Taiwan, from August to October 2019. This study identified important containment strategies for controlling the outbreak. The outbreak investigation and ovitrap data were collected from the Department of Hea...

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Autores principales: Chan, Ta-Chien, Hsu, Yu-Fen, Huang, Shao-Chun, Chen, Ran-Chou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8482269/
https://www.ncbi.nlm.nih.gov/pubmed/34564549
http://dx.doi.org/10.3390/tropicalmed6030165
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author Chan, Ta-Chien
Hsu, Yu-Fen
Huang, Shao-Chun
Chen, Ran-Chou
author_facet Chan, Ta-Chien
Hsu, Yu-Fen
Huang, Shao-Chun
Chen, Ran-Chou
author_sort Chan, Ta-Chien
collection PubMed
description The first indigenous outbreak of chikungunya in Taiwan occurred in New Taipei City, northern Taiwan, from August to October 2019. This study identified important containment strategies for controlling the outbreak. The outbreak investigation and ovitrap data were collected from the Department of Health, New Taipei City Government. A geographic information system (GIS) was applied for spatial analysis, and descriptive statistics were used to compute the demographic features and medical visits of confirmed cases. There were 19 residents infected during the outbreak. The source of this outbreak was a mountain trail with abundant Aedes albopictus. The atypical symptoms and lack of a rapid test led to multiple clinical visits by the patients (mean: 2.79; standard deviation: 1.65). The clinical symptoms of chikungunya are very similar to those of dengue fever. We noted that only eight patients were polymerase chain reaction (PCR)-positive in their first blood collection, and an average of 3.13 days between illness onset and PCR-positive results. The improved laboratory panel test, targeted and rapid insecticide spraying at the households and their communities, strict closure of the mountain trail, and ovitrap surveillance for evaluating intervention were important approaches to rapidly contain the outbreak.
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spelling pubmed-84822692021-10-01 Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned Chan, Ta-Chien Hsu, Yu-Fen Huang, Shao-Chun Chen, Ran-Chou Trop Med Infect Dis Case Report The first indigenous outbreak of chikungunya in Taiwan occurred in New Taipei City, northern Taiwan, from August to October 2019. This study identified important containment strategies for controlling the outbreak. The outbreak investigation and ovitrap data were collected from the Department of Health, New Taipei City Government. A geographic information system (GIS) was applied for spatial analysis, and descriptive statistics were used to compute the demographic features and medical visits of confirmed cases. There were 19 residents infected during the outbreak. The source of this outbreak was a mountain trail with abundant Aedes albopictus. The atypical symptoms and lack of a rapid test led to multiple clinical visits by the patients (mean: 2.79; standard deviation: 1.65). The clinical symptoms of chikungunya are very similar to those of dengue fever. We noted that only eight patients were polymerase chain reaction (PCR)-positive in their first blood collection, and an average of 3.13 days between illness onset and PCR-positive results. The improved laboratory panel test, targeted and rapid insecticide spraying at the households and their communities, strict closure of the mountain trail, and ovitrap surveillance for evaluating intervention were important approaches to rapidly contain the outbreak. MDPI 2021-09-10 /pmc/articles/PMC8482269/ /pubmed/34564549 http://dx.doi.org/10.3390/tropicalmed6030165 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Case Report
Chan, Ta-Chien
Hsu, Yu-Fen
Huang, Shao-Chun
Chen, Ran-Chou
Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned
title Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned
title_full Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned
title_fullStr Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned
title_full_unstemmed Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned
title_short Rapidly Containing the First Indigenous Outbreak of Chikungunya in Taiwan—Lessons Learned
title_sort rapidly containing the first indigenous outbreak of chikungunya in taiwan—lessons learned
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8482269/
https://www.ncbi.nlm.nih.gov/pubmed/34564549
http://dx.doi.org/10.3390/tropicalmed6030165
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