Relationship between Climate Variables and Dengue Incidence in Argentina.
Journal
Environmental health perspectives
ISSN: 1552-9924
Titre abrégé: Environ Health Perspect
Pays: United States
ID NLM: 0330411
Informations de publication
Date de publication:
05 2023
05 2023
Historique:
medline:
26
5
2023
pubmed:
24
5
2023
entrez:
24
5
2023
Statut:
ppublish
Résumé
Climate change is an important driver of the increased spread of dengue from tropical and subtropical regions to temperate areas around the world. Climate variables such as temperature and precipitation influence the dengue vector's biology, physiology, abundance, and life cycle. Thus, an analysis is needed of changes in climate change and their possible relationships with dengue incidence and the growing occurrence of epidemics recorded in recent decades. This study aimed to assess the increasing incidence of dengue driven by climate change at the southern limits of dengue virus transmission in South America. We analyzed the evolution of climatological, epidemiological, and biological variables by comparing a period of time without the presence of dengue cases (1976-1997) to a more recent period of time in which dengue cases and important outbreaks occurred (1998-2020). In our analysis, we consider climate variables associated with temperature and precipitation, epidemiological variables such as the number of reported dengue cases and incidence of dengue, and biological variables such as the optimal temperature ranges for transmission of dengue vector. The presence of dengue cases and epidemic outbreaks are observed to be consistent with positive trends in temperature and anomalies from long-term means. Dengue cases do not seem to be associated with precipitation trends and anomalies. The number of days with optimal temperatures for dengue transmission increased from the period without dengue cases to the period with occurrences of dengue cases. The number of months with optimal transmission temperatures also increased between periods but to a lesser extent. The higher incidence of dengue virus and its expansion to different regions of Argentina seem to be associated with temperature increases in the country during the past two decades. The active surveillance of both the vector and associated arboviruses, together with continued meteorological data collection, will facilitate the assessment and prediction of future epidemics that use trends in the accelerated changes in climate. Such surveillance should go hand in hand with efforts to improve the understanding of the mechanisms driving the geographic expansion of dengue and other arboviruses beyond the current limits. https://doi.org/10.1289/EHP11616.
Sections du résumé
BACKGROUND
Climate change is an important driver of the increased spread of dengue from tropical and subtropical regions to temperate areas around the world. Climate variables such as temperature and precipitation influence the dengue vector's biology, physiology, abundance, and life cycle. Thus, an analysis is needed of changes in climate change and their possible relationships with dengue incidence and the growing occurrence of epidemics recorded in recent decades.
OBJECTIVES
This study aimed to assess the increasing incidence of dengue driven by climate change at the southern limits of dengue virus transmission in South America.
METHODS
We analyzed the evolution of climatological, epidemiological, and biological variables by comparing a period of time without the presence of dengue cases (1976-1997) to a more recent period of time in which dengue cases and important outbreaks occurred (1998-2020). In our analysis, we consider climate variables associated with temperature and precipitation, epidemiological variables such as the number of reported dengue cases and incidence of dengue, and biological variables such as the optimal temperature ranges for transmission of dengue vector.
RESULTS
The presence of dengue cases and epidemic outbreaks are observed to be consistent with positive trends in temperature and anomalies from long-term means. Dengue cases do not seem to be associated with precipitation trends and anomalies. The number of days with optimal temperatures for dengue transmission increased from the period without dengue cases to the period with occurrences of dengue cases. The number of months with optimal transmission temperatures also increased between periods but to a lesser extent.
CONCLUSIONS
The higher incidence of dengue virus and its expansion to different regions of Argentina seem to be associated with temperature increases in the country during the past two decades. The active surveillance of both the vector and associated arboviruses, together with continued meteorological data collection, will facilitate the assessment and prediction of future epidemics that use trends in the accelerated changes in climate. Such surveillance should go hand in hand with efforts to improve the understanding of the mechanisms driving the geographic expansion of dengue and other arboviruses beyond the current limits. https://doi.org/10.1289/EHP11616.
Identifiants
pubmed: 37224070
doi: 10.1289/EHP11616
pmc: PMC10208431
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
57008Références
Rev Panam Salud Publica. 2007 Jan;21(1):55-63
pubmed: 17439693
Mem Inst Oswaldo Cruz. 2008 Feb;103(1):66-74
pubmed: 18327504
Mem Inst Oswaldo Cruz. 2020;115:e190496
pubmed: 32401999
Trends Microbiol. 2014 Mar;22(3):138-46
pubmed: 24468533
PLoS One. 2013 Nov 12;8(11):e78263
pubmed: 24324542
Clin Epidemiol. 2013 Aug 20;5:299-309
pubmed: 23990732
Int J Environ Res Public Health. 2019 Dec 14;16(24):
pubmed: 31847373
Glob Health Action. 2009 Nov 11;2:
pubmed: 20052380
Euro Surveill. 2010 Sep 30;15(39):19676
pubmed: 20929659
Sci Data. 2019 Nov 21;6(1):276
pubmed: 31754110
PLoS Negl Trop Dis. 2013;7(1):e1963
pubmed: 23383351
Elife. 2015 Jun 30;4:e08347
pubmed: 26126267
Ecol Lett. 2012 May;15(5):502-8
pubmed: 22414183
Ecol Lett. 2019 Oct;22(10):1690-1708
pubmed: 31286630
J Med Entomol. 2021 Jul 16;58(4):1733-1739
pubmed: 33675644
Nature. 2013 Apr 25;496(7446):504-7
pubmed: 23563266
Arch Med Res. 2002 Jul-Aug;33(4):330-42
pubmed: 12234522
Curr Opin Virol. 2020 Feb;40:41-47
pubmed: 32569752
Nat Immunol. 2020 May;21(5):479-483
pubmed: 32313242
Trop Med Health. 2011 Dec;39(4 Suppl):3-11
pubmed: 22500131
West J Emerg Med. 2016 Nov;17(6):671-679
pubmed: 27833670
Am J Trop Med Hyg. 2012 Oct;87(4):584-93
pubmed: 23042846
Emerg Top Life Sci. 2019 May 10;3(2):133-142
pubmed: 33523146
Insects. 2014 Dec 16;5(4):991-1000
pubmed: 26462955
PLoS Negl Trop Dis. 2013 Apr 25;7(4):e2190
pubmed: 23638208
Acta Trop. 2014 Aug;136:129-36
pubmed: 24795212
J Insect Physiol. 2021 May-Jun;131:104232
pubmed: 33798504
Int J Infect Dis. 2014 Feb;19:6-12
pubmed: 24334026
Nat Commun. 2021 Feb 23;12(1):1233
pubmed: 33623008
Trop Med Int Health. 2014 Feb;19(2):159-68
pubmed: 24286460
Sci Rep. 2022 Jan 12;12(1):571
pubmed: 35022501
Sci Data. 2021 May 20;8(1):134
pubmed: 34016998
Rev Inst Med Trop Sao Paulo. 2012 Oct;54 Suppl 18:S5-6
pubmed: 23011450
Acta Trop. 2022 Jul;231:106471
pubmed: 35430266
One Health. 2020 Dec 16;12:100205
pubmed: 33376769
PLoS Negl Trop Dis. 2010 May 25;4(5):e646
pubmed: 20520794
Emerg Infect Dis. 1999 Jul-Aug;5(4):575-8
pubmed: 10460181
PLoS Negl Trop Dis. 2021 Dec 9;15(12):e0009773
pubmed: 34882679
Environ Health Perspect. 2017 Apr;125(4):579-585
pubmed: 27713106
Med Clin North Am. 2008 Nov;92(6):1377-90, x
pubmed: 19061757
Sci Data. 2018 Oct 30;5:180214
pubmed: 30375988
Travel Med Infect Dis. 2013 Sep-Oct;11(5):274-84
pubmed: 23962447
PLoS Negl Trop Dis. 2018 May 10;12(5):e0006451
pubmed: 29746468
Nat Microbiol. 2019 Sep;4(9):1508-1515
pubmed: 31182801
Geohealth. 2020 Aug 01;4(8):e2020GH000253
pubmed: 32864539
Annu Rev Entomol. 2020 Jan 7;65:191-208
pubmed: 31594415