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Spatio-Temporal Dynamics of Plasmodium falciparum and Plasmodium vivax in French Guiana: 2005–2019

Author

Listed:
  • Jenna Scully

    (Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA)

  • Emilie Mosnier

    (Infectious and Tropical Disease Unit, Cayenne Hospital, 97306 Cayenne, French Guiana
    INSERM, IRD, SESSTIM, Health Economics & Social Sciences & Health Information Processing, Aix Marseille University, 13385 Marseille, France)

  • Aurel Carbunar

    (Delocalized Prevention and Care Centers, Cayenne Hospital, 97306 Cayenne, French Guiana)

  • Emmanuel Roux

    (ESPACE-DEV (IRD, University of Reunion Island, University of the West Indies, University of French Guiana, University of Montpellier), 34000 Montpellier, France
    LMI Sentinela, International Joint Laboratory ‘Sentinela’ (Fiocruz, UnB, IRD), Rio de Janeiro, RJ 21040-900, Brazil)

  • Félix Djossou

    (Infectious and Tropical Disease Unit, Cayenne Hospital, 97306 Cayenne, French Guiana
    Amazonian Ecosystems and Tropical Diseases, EA3593, University of French Guiana, 97300 Cayenne, French Guiana)

  • Nicolas Garçeran

    (Delocalized Prevention and Care Centers, Cayenne Hospital, 97306 Cayenne, French Guiana)

  • Lise Musset

    (Parasitology Laboratory, Malaria National Reference Center, French Guiana Pasteur Institute, 97300 Cayenne, French Guiana)

  • Alice Sanna

    (French Guiana Regional Health Agency, 97306 Cayenne, French Guiana)

  • Magalie Demar

    (Parasitology & Mycology Laboratory, Cayenne Hospital, 97306 Cayenne, French Guiana)

  • Mathieu Nacher

    (French Guiana and West Indies Clinical Investigation Center-INSERM 1424, Cayenne Hospital, 97306 Cayenne, French Guiana)

  • Jean Gaudart

    (Aix Marseille University, IRD, INSERM, APHM, La Timone Hospital, Biostatistics and ICT, 13385 Marseille, France)

Abstract

Aims: This study examines the dynamics of malaria as influenced by meteorological factors in French Guiana from 2005 to 2019. It explores spatial hotspots of malaria transmission and aims to determine the factors associated with variation of hotspots with time. Methods : Data for individual malaria cases came from the surveillance system of the Delocalized Centers for Prevention and Care (CDPS) ( n = 17) from 2005–2019. Meteorological data was acquired from the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) database. The Box–Jenkins autoregressive integrated moving average (ARIMA) model tested stationarity of the time series, and the impact of meteorological indices (issued from principal component analysis—PCA) on malaria incidence was determined with a general additive model. Hotspot characterization was performed using spatial scan statistics. Results : The current sample includes 7050 eligible Plasmodium vivax ( n = 4111) and Plasmodium falciparum ( n = 2939) cases from health centers across French Guiana. The first and second PCA-derived meteorological components (maximum/minimum temperature/minimum humidity and maximum humidity, respectively) were significantly negatively correlated with total malaria incidence with a lag of one week and 10 days, respectively. Overall malaria incidence decreased across the time series until 2017 when incidence began to trend upwards. Hotspot characterization revealed a few health centers that exhibited spatial stability across the entire time series: Saint Georges de l’Oyapock and Antecume Pata for P. falciparum , and Saint Georges de l’Oyapock, Antecume Pata, Régina and Camopi for P. vivax. Conclusions : This study highlighted changing malaria incidence in French Guiana and the influences of meteorological factors on transmission. Many health centers showed spatial stability in transmission, albeit not temporal. Knowledge of the areas of high transmission as well as how and why transmission has changed over time can inform strategies to reduce the transmission of malaria in French Guiana. Hotspots should be further investigated to understand other influences on local transmission, which will help to facilitate elimination.

Suggested Citation

  • Jenna Scully & Emilie Mosnier & Aurel Carbunar & Emmanuel Roux & Félix Djossou & Nicolas Garçeran & Lise Musset & Alice Sanna & Magalie Demar & Mathieu Nacher & Jean Gaudart, 2021. "Spatio-Temporal Dynamics of Plasmodium falciparum and Plasmodium vivax in French Guiana: 2005–2019," IJERPH, MDPI, vol. 18(3), pages 1-12, January.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:3:p:1077-:d:487064
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    References listed on IDEAS

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    1. David I Stern & Peter W Gething & Caroline W Kabaria & William H Temperley & Abdisalan M Noor & Emelda A Okiro & G Dennis Shanks & Robert W Snow & Simon I Hay, 2011. "Temperature and Malaria Trends in Highland East Africa," PLOS ONE, Public Library of Science, vol. 6(9), pages 1-9, September.
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