Detection of Hepatitis E Virus Genotype 3 in Feces of Capybaras (Hydrochoeris hydrochaeris) in Brazil.
Lia Cunha, Adriana Luchs, Lais S Azevedo, Vanessa C M Silva, Marcilio F Lemos, Antonio C Costa, Adriana P Compri, Yasmin França, Ellen Viana, Fernanda Malta, Roberta S Medeiros, Raquel Guiducci, Simone G Morillo, Michele S Gomes-Gouvea, Deyvid Amgarten, João R R Pinho, Regina C Moreira
Author Information
Lia Cunha: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Adriana Luchs: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil. ORCID
Lais S Azevedo: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Vanessa C M Silva: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Marcilio F Lemos: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Antonio C Costa: Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo 05403-000, Brazil. ORCID
Adriana P Compri: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Yasmin França: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Ellen Viana: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Fernanda Malta: Hospital Israelita Albert Einstein, Sao Paulo 05652-900, Brazil.
Roberta S Medeiros: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Raquel Guiducci: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Simone G Morillo: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil.
Michele S Gomes-Gouvea: Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo 05403-000, Brazil.
Deyvid Amgarten: Hospital Israelita Albert Einstein, Sao Paulo 05652-900, Brazil.
João R R Pinho: Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo 05403-000, Brazil. ORCID
Regina C Moreira: Instituto Adolfo Lutz, Sao Paulo 01246-902, Brazil. ORCID
Hepatitis E virus (HEV) is an emerging zoonotic pathogen associated with relevant public health issues. The aim of this study was to investigate HEV presence in free-living capybaras inhabiting urban parks in São Paulo state, Brazil. Molecular characterization of HEV positive samples was undertaken to elucidate the genetic diversity of the virus in these animals. A total of 337 fecal samples were screened for HEV using RT-qPCR and further confirmed by conventional nested RT-PCR. HEV genotype and subtype were determined using Sanger and next-generation sequencing. HEV was detected in one specimen (0.3%) and assigned as HEV-3f. The IAL-HEV_921 HEV-3f strain showed a close relationship to European swine, wild boar and human strains (90.7-93.2% nt), suggesting an interspecies transmission. Molecular epidemiology of HEV is poorly investigated in Brazil; subtype 3f has been reported in swine. This is the first report of HEV detected in capybara stool samples worldwide.