Reemergence of yellow fever in the state of São Paulo: the structuring role of surveillance of epizootics in non-human primates in a one health approach.

OBJECTIVE

to present a comprehensive analysis of YF occurrence of in the state of São Paulo since its reemergence, and the ongoing process of structuring the surveillance of epizootics in non-human primates in a one health approach.

METHODS

descriptive study of human cases and epizootics in non-human primates, structuring actions and the one health approach used in the state of São Paulo for yellow fever surveillance from 2000 to 2023.

RESULTS

from 2000 to 2023, 679 human cases and 857 epizootics in NHPs confirmed for yellow fever were recorded. There was an intensification of epizootic surveillance actions in non-human primates from 2017, when the virus circulated in areas without vaccine recommendations in the state.

CONCLUSION

Five outbreaks were registered during the evaluated period, and the surveillance of epizootics in non-human primates played a fundamental role in implementing disease prevention and control measures in areas without vaccination recommendation, guiding vaccination actions, and serving as an example of how a one health approach can be adopted within epidemiological surveillance, making it more resilient to emerging threats.