Yellow fever surveillance suggests zoonotic and anthroponotic emergent potential

Yellow fever is transmitted by mosquitoes among human and non-human primates. In the last decades, infections are occurring in areas that had been free from yellow fever for decades, probably as a consequence of the rapid spread of mosquito vectors, and of the virus evolutionary dynamic in which non...

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Bibliographic Details
Published in:Communications biology 2022-06, Vol.5 (1), p.530-12, Article 530
Main Authors: Aliaga-Samanez, Alisa, Real, Raimundo, Segura, Marina, Marfil-Daza, Carlos, Olivero, Jesús
Format: Article
Language:English
Subjects:
631/158/1144
631/158/1469
631/158/852
692/699/255/2514
Animal models
Animals
Biology
Biomedical and Life Sciences
Brazil - epidemiology
Culicidae
Fever
Habitat fragmentation
Life Sciences
Mosquito Vectors
Primates
Rainforests
Surveillance
Vaccination
Vectors
Yellow fever
Yellow Fever - epidemiology
Yellow Fever - prevention & control
Zoonoses
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Summary:Yellow fever is transmitted by mosquitoes among human and non-human primates. In the last decades, infections are occurring in areas that had been free from yellow fever for decades, probably as a consequence of the rapid spread of mosquito vectors, and of the virus evolutionary dynamic in which non-human primates are involved. This research is a pathogeographic assessment of where enzootic cycles, based on primate assemblages, could be amplifying the risk of yellow fever infections, in the context of spatial changes shown by the disease since the late 20 th century. In South America, the most relevant spread of disease cases affects parts of the Amazon basin and a wide area of southern Brazil, where forest fragmentation could be activating enzootic cycles next to urban areas. In Africa, yellow fever transmission is apparently spreading from the west of the continent, and primates could be contributing to this in savannas around rainforests. Our results are useful for identifying new areas that should be prioritised for vaccination, and suggest the need of deep yellow fever surveillance in primates of South America and Africa. Models based on primates and disease vectors indicate a risk of zoonotic and anthroponotic yellow fever expansion in South America and Africa.
ISSN:2399-3642
2399-3642
DOI:10.1038/s42003-022-03492-9