We identified new clinical manifestations associated with Senecavirus A infection in neonatal piglets in Brazil in 2015. Immunohistochemical and molecular findings confirmed the association of Senecavirus A with these unusual clinical signs and more deaths. Other possible disease agents investigated were not associated with these illnesses.
Keywords: Brazil; Seneca Valley virus; Senecavirus A; pathogenesis; picornavirus infection; piglets; swine; viruses.