TY - SER AU - Sousa,E.de AU - Costa,T.P. AU - Werther,K. AU - Durigon,E.L. AU - Araujo,J.de AU - Ferreira,C.S. AU - Pinto,A.A. TI - Presence of antibodies against H5, H7 and H9 influenza A virus in wild birds in the state of São Paulo, Brazil KW - AVE SELVAGEM KW - ANTIBIOTICO KW - GRIPE KW - VIRUS ER -