Assessing Climate Variability Effects on Dengue Incidence in San Juan, Puerto Rico

Méndez‐Lázaro, Pablo; Muller‐Karger, Frank E.; Otis, D. B.; McCarthy, Matthew J.; Peña-Orellana, Marisol

doi:10.3390/ijerph110909409

Cited by 62 publications

(71 citation statements)

References 56 publications

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“…Rainfall is a source of fresh water for mosquito breeding in water containers. However excessive rainfall is negatively associated with dengue by washing out the eggs [17, 18]. Further, high population density and low socioeconomic status are positively associated with dengue occurrence [17–19].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal analysis of dengue fever in Nepal from 2010 to 2014

et al. 2016

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BackgroundDue to recent emergence, dengue is becoming one of the major public health problems in Nepal. The numbers of reported dengue cases in general and the area with reported dengue cases are both continuously increasing in recent years. However, spatiotemporal patterns and clusters of dengue have not been investigated yet. This study aims to fill this gap by analyzing spatiotemporal patterns based on monthly surveillance data aggregated at district.MethodsDengue cases from 2010 to 2014 at district level were collected from the Nepal government’s health and mapping agencies respectively. GeoDa software was used to map crude incidence, excess hazard and spatially smoothed incidence. Cluster analysis was performed in SaTScan software to explore spatiotemporal clusters of dengue during the above-mentioned time period.ResultsSpatiotemporal distribution of dengue fever in Nepal from 2010 to 2014 was mapped at district level in terms of crude incidence, excess risk and spatially smoothed incidence. Results show that the distribution of dengue fever was not random but clustered in space and time. Chitwan district was identified as the most likely cluster and Jhapa district was the first secondary cluster in both spatial and spatiotemporal scan. July to September of 2010 was identified as a significant temporal cluster.ConclusionThis study assessed and mapped for the first time the spatiotemporal pattern of dengue fever in Nepal. Two districts namely Chitwan and Jhapa were found highly affected by dengue fever. The current study also demonstrated the importance of geospatial approach in epidemiological research. The initial result on dengue patterns and risk of this study may assist institutions and policy makers to develop better preventive strategies.

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal analysis of dengue fever in Nepal from 2010 to 2014

et al. 2016

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“…Consecutive raining days may play an important role contributing to dengue epidemic 11 by maintaining a wet environment. This provides mosquitoes with adequate conditions for eggs to hatch and larva survival.…”

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confidence: 99%

Severe Dengue Fever Outbreak in Taiwan

Wang

Chang

et al. 2016

The American Society of Tropical Medicine and Hygiene

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Abstract. Dengue fever (DF) is a vector-borne disease caused by dengue viruses (DENVs). Epidemic dengue occurs intermittently in Taiwan. In 2014, Taiwan experienced its largest DF outbreak. There were 15,732 DF cases reported. There were a total of 136 dengue hemorrhagic fever (DHF) cases, of which 20 resulted in death. Most DF cases were reported in southern Taiwan. A total of 15,043 (96%) cases were from Kaohsiung, a modern city in southern Taiwan. This report reviews DF epidemics in Taiwan during [2005][2006][2007][2008][2009][2010][2011][2012][2013][2014]. The correlation between DF and DHF along with temperature and precipitation were conjointly examined. We conclude that most dengue epidemics in Taiwan resulted from imported DF cases. Results indicate three main factors that may have been associated with this DF outbreak in Kaohsiung: an underground pipeline explosion combined with subsequent rainfall and higher temperature. These factors may have enhanced mosquito breeding activity, facilitating DENV transmission.Dengue fever (DF) is caused by dengue viruses (DENVs) infection. It is a mosquito-borne viral disease in tropical and subtropical regions of the world.

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“…Second, several studies provided insights in Ae. aegypti habitat and the potential for dengue risk in Puerto Rico [7,16,25,[47][48][49][50][51][52][53][54][55]58]. The articles on this topic can be taken as an indicator that operational research on dengue ecology and epidemiology in Puerto Rico is strong and that applications of tested interventions to reduce dengue transmission can ultimately stop the rapid spread of Zika.…”

Section: Discussionmentioning

confidence: 99%

Interrelationship between Climatic, Ecologic, Social, and Cultural Determinants Affecting Dengue Emergence and Transmission in Puerto Rico and Their Implications for Zika Response

Matysiak

Roess

2017

Journal of Tropical Medicine

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Objective The global resurgence of dengue has been attributed to rapid population growth, urban expansion, increased air travel, globalization, and climate change. Dengue is now endemic in Puerto Rico. Puerto Rico is at risk for Zika, another emerging arbovirus. The interrelationship between climatic, ecological, social, and cultural factors that affect dengue and other arboviruses' transmission is understudied. Design The objective of this systematic review is to examine the interrelationship between climatic, ecological, social, and cultural factors on dengue transmission in Puerto Rico and to draw lessons for Zika response. Results A comprehensive search of peer-reviewed journal articles was performed, producing 562 articles; 26 were selected for this review. Findings indicate that human activities and behaviors (urbanization, migration, and consumption) as well as climate have a significant impact on the abundance and the transmission potential of Ae. aegypti, the vector for dengue, Zika, and other viruses. Conclusion Despite the public health burden of dengue limited investments have been made in research and surveillance. Future research is needed to develop models that integrate the multivariate effects of climatic, ecological, social, and cultural factors, which for Puerto Rico have mostly been examined independently. Such models have the potential to inform response to dengue, Zika, and other arboviruses.

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Assessing Climate Variability Effects on Dengue Incidence in San Juan, Puerto Rico

Cited by 62 publications

References 56 publications

Spatiotemporal analysis of dengue fever in Nepal from 2010 to 2014

Spatiotemporal analysis of dengue fever in Nepal from 2010 to 2014

Severe Dengue Fever Outbreak in Taiwan

Interrelationship between Climatic, Ecologic, Social, and Cultural Determinants Affecting Dengue Emergence and Transmission in Puerto Rico and Their Implications for Zika Response

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