Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil

Abstract We investigated the sylvatic yellow fever (SYF) diffusion process in São Paulo (SP) between 2016 and 2019. We developed an ecological study of SYF through autochthonous human cases and epizootics of non-human primates (NHPs) that were spatiotemporally evaluated. We used kriging to obtain ma...

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Autores principales:	Alec Brian Lacerda, Leila del Castillo Saad, Priscilla Venâncio Ikefuti, Adriano Pinter, Francisco Chiaravalloti-Neto
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bb9c49290bc84226bd3286ea2c35aded
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spelling	oai:doaj.org-article:bb9c49290bc84226bd3286ea2c35aded2021-12-02T15:07:55ZDiffusion of sylvatic yellow fever in the state of São Paulo, Brazil10.1038/s41598-021-95539-w2045-2322https://doaj.org/article/bb9c49290bc84226bd3286ea2c35aded2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95539-whttps://doaj.org/toc/2045-2322Abstract We investigated the sylvatic yellow fever (SYF) diffusion process in São Paulo (SP) between 2016 and 2019. We developed an ecological study of SYF through autochthonous human cases and epizootics of non-human primates (NHPs) that were spatiotemporally evaluated. We used kriging to obtain maps with isochrones representative of the evolution of the outbreak and characterized its diffusion pattern. We confirmed 648 human cases of SYF in SP, with 230 deaths and 843 NHP epizootics. Two outbreak waves were identified: one from West to East (2016 and 2017), and another from the Campinas region to the municipalities bordering Rio de Janeiro, Minas Gerais, and Paraná and those of the SP coast (2017–2019). The SYF outbreak diffusion process was by contagion. The disease did not exhibit jumps between municipalities, indicating that the mosquitoes and NHPs were responsible for transmitting the virus. There were not enough vaccines to meet the population at risk; hence, health authorities used information about the epizootic occurrence in NHPs in forest fragments to identify priority populations for vaccination.Alec Brian LacerdaLeila del Castillo SaadPriscilla Venâncio IkefutiAdriano PinterFrancisco Chiaravalloti-NetoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alec Brian Lacerda Leila del Castillo Saad Priscilla Venâncio Ikefuti Adriano Pinter Francisco Chiaravalloti-Neto Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil
description	Abstract We investigated the sylvatic yellow fever (SYF) diffusion process in São Paulo (SP) between 2016 and 2019. We developed an ecological study of SYF through autochthonous human cases and epizootics of non-human primates (NHPs) that were spatiotemporally evaluated. We used kriging to obtain maps with isochrones representative of the evolution of the outbreak and characterized its diffusion pattern. We confirmed 648 human cases of SYF in SP, with 230 deaths and 843 NHP epizootics. Two outbreak waves were identified: one from West to East (2016 and 2017), and another from the Campinas region to the municipalities bordering Rio de Janeiro, Minas Gerais, and Paraná and those of the SP coast (2017–2019). The SYF outbreak diffusion process was by contagion. The disease did not exhibit jumps between municipalities, indicating that the mosquitoes and NHPs were responsible for transmitting the virus. There were not enough vaccines to meet the population at risk; hence, health authorities used information about the epizootic occurrence in NHPs in forest fragments to identify priority populations for vaccination.
format	article
author	Alec Brian Lacerda Leila del Castillo Saad Priscilla Venâncio Ikefuti Adriano Pinter Francisco Chiaravalloti-Neto
author_facet	Alec Brian Lacerda Leila del Castillo Saad Priscilla Venâncio Ikefuti Adriano Pinter Francisco Chiaravalloti-Neto
author_sort	Alec Brian Lacerda
title	Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil
title_short	Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil
title_full	Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil
title_fullStr	Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil
title_full_unstemmed	Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil
title_sort	diffusion of sylvatic yellow fever in the state of são paulo, brazil
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/bb9c49290bc84226bd3286ea2c35aded
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Diffusion of sylvatic yellow fever in the state of São Paulo, Brazil

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