Estimating Effects of Temperature on Dengue Transmission in Colombian Cities

Background: <a title="Learn more about Dengue fever" href="https://www.sciencedirect.com/topics/medicine-and-dentistry/dengue-fever">Dengue fever</a> is a viral disease that affects tropical and subtropical regions of the world. It is well known that processes related...

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Autores principales:	Víctor Hugo Peña-García, Omar Triana-Chávez, Sair Arboleda-Sánchez
Formato:	article
Lenguaje:	EN
Publicado:	Ubiquity Press 2017
Materias:	climatic variables correlation analysis correlation coefficient dengue incidence temperature Infectious and parasitic diseases RC109-216 Public aspects of medicine RA1-1270
Acceso en línea:	https://doaj.org/article/690ef1fb38984b76a75ecf561a6df5d3
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spelling	oai:doaj.org-article:690ef1fb38984b76a75ecf561a6df5d32021-12-02T02:36:37ZEstimating Effects of Temperature on Dengue Transmission in Colombian Cities2214-999610.1016/j.aogh.2017.10.011https://doaj.org/article/690ef1fb38984b76a75ecf561a6df5d32017-11-01T00:00:00Zhttps://annalsofglobalhealth.org/articles/163https://doaj.org/toc/2214-9996Background: <a title="Learn more about Dengue fever" href="https://www.sciencedirect.com/topics/medicine-and-dentistry/dengue-fever">Dengue fever</a> is a viral disease that affects tropical and subtropical regions of the world. It is well known that processes related to virus transmission by mosquitoes are highly influenced by weather. Temperature has been described as one of the climatic variables that largely governs the development and survival of mosquito eggs as well as the survival of all insect stages. Previously, we noted that high temperatures in the Colombian city of Riohacha negatively affect the establishment of dengue virus (DENV) infection in mosquitoes; in Bello and Villavicencio cities, which have lower average temperatures, DENV infection rates in mosquitoes are positively associated with a gradual increase in temperature. Here, we test the hypothesis that a similar effect of temperature can be detected in the incidence in the human population inhabiting dengue-endemic cities in Colombia. Objective: Our objective was to evaluate the effect of climate variables related to temperature on DENV incidence in human populations living in DENV-endemic cities in Colombia. Methods: Epidemiologic data from the Instituto Nacional de Salud from 2012-2015 and 7 variables related to temperature were used to perform Spearman rank sum test analyses on 20 Colombian cities. Additionally, locally estimated scatterplot smoothing analyses were performed to describe the relationship among temperatures and incidence. Findings: Results indicated that Colombian cities with average and maximum temperatures greater than 28°C and 32°C, respectively, had an inversely related relationship to DENV incidence, which is in accordance with areas where higher temperatures are recorded in Colombia. Conclusion</h3>Climatic variables related to temperature affect dengue epidemiology in different way. According to the temperature of each city, transmission might be positively or negatively affected.Víctor Hugo Peña-GarcíaOmar Triana-ChávezSair Arboleda-SánchezUbiquity Pressarticleclimatic variablescorrelation analysiscorrelation coefficientdengueincidencetemperatureInfectious and parasitic diseasesRC109-216Public aspects of medicineRA1-1270ENAnnals of Global Health, Vol 83, Iss 3-4, Pp 509-518 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	climatic variables correlation analysis correlation coefficient dengue incidence temperature Infectious and parasitic diseases RC109-216 Public aspects of medicine RA1-1270
spellingShingle	climatic variables correlation analysis correlation coefficient dengue incidence temperature Infectious and parasitic diseases RC109-216 Public aspects of medicine RA1-1270 Víctor Hugo Peña-García Omar Triana-Chávez Sair Arboleda-Sánchez Estimating Effects of Temperature on Dengue Transmission in Colombian Cities
description	Background: <a title="Learn more about Dengue fever" href="https://www.sciencedirect.com/topics/medicine-and-dentistry/dengue-fever">Dengue fever</a> is a viral disease that affects tropical and subtropical regions of the world. It is well known that processes related to virus transmission by mosquitoes are highly influenced by weather. Temperature has been described as one of the climatic variables that largely governs the development and survival of mosquito eggs as well as the survival of all insect stages. Previously, we noted that high temperatures in the Colombian city of Riohacha negatively affect the establishment of dengue virus (DENV) infection in mosquitoes; in Bello and Villavicencio cities, which have lower average temperatures, DENV infection rates in mosquitoes are positively associated with a gradual increase in temperature. Here, we test the hypothesis that a similar effect of temperature can be detected in the incidence in the human population inhabiting dengue-endemic cities in Colombia. Objective: Our objective was to evaluate the effect of climate variables related to temperature on DENV incidence in human populations living in DENV-endemic cities in Colombia. Methods: Epidemiologic data from the Instituto Nacional de Salud from 2012-2015 and 7 variables related to temperature were used to perform Spearman rank sum test analyses on 20 Colombian cities. Additionally, locally estimated scatterplot smoothing analyses were performed to describe the relationship among temperatures and incidence. Findings: Results indicated that Colombian cities with average and maximum temperatures greater than 28°C and 32°C, respectively, had an inversely related relationship to DENV incidence, which is in accordance with areas where higher temperatures are recorded in Colombia. Conclusion</h3>Climatic variables related to temperature affect dengue epidemiology in different way. According to the temperature of each city, transmission might be positively or negatively affected.
format	article
author	Víctor Hugo Peña-García Omar Triana-Chávez Sair Arboleda-Sánchez
author_facet	Víctor Hugo Peña-García Omar Triana-Chávez Sair Arboleda-Sánchez
author_sort	Víctor Hugo Peña-García
title	Estimating Effects of Temperature on Dengue Transmission in Colombian Cities
title_short	Estimating Effects of Temperature on Dengue Transmission in Colombian Cities
title_full	Estimating Effects of Temperature on Dengue Transmission in Colombian Cities
title_fullStr	Estimating Effects of Temperature on Dengue Transmission in Colombian Cities
title_full_unstemmed	Estimating Effects of Temperature on Dengue Transmission in Colombian Cities
title_sort	estimating effects of temperature on dengue transmission in colombian cities
publisher	Ubiquity Press
publishDate	2017
url	https://doaj.org/article/690ef1fb38984b76a75ecf561a6df5d3
work_keys_str_mv	AT victorhugopenagarcia estimatingeffectsoftemperatureondenguetransmissionincolombiancities AT omartrianachavez estimatingeffectsoftemperatureondenguetransmissionincolombiancities AT sairarboledasanchez estimatingeffectsoftemperatureondenguetransmissionincolombiancities
_version_	1718402354832736256

Estimating Effects of Temperature on Dengue Transmission in Colombian Cities

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