Detection of Wild-type Yellow Fever Virus in Breast Milk

Ana Freitas Ribeiro1,2, Lucas Mendes Cunha de Resende Brasil1, Renato Martins Prada1

  • 1From the Institute of Infectology Emillio Ribas, State of São Paulo Department of Health, São Paulo, Brazil.

Yellow fever is an endemic disease in tropical areas in America and Africa. We report a case where the wild-type yellow fever virus was detected in a breast milk sample of a 33-year-old woman, from a rural area in the municipality of São Paulo, thus highlighting a potential risk for transmission of yellow fever virus through breast-feeding.

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