Recent seroprevalence studies in animals detected Rocio virus in regions of Brazil, indicating risk for re-emergence of this pathogen. We identified Rocio virus RNA in samples from 2 human patients for whom dengue fever was clinically suspected but ruled out by laboratory findings. Testing for infrequent flavivirus infections should expedite diagnoses.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7101124PMC
http://dx.doi.org/10.3201/2604.190487DOI Listing

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