First serologic evidence for Toxoplasma gondii in cats and dogs from Fernando de Noronha archipelogo, Pernambuco, Brazil - Silva, J. C. R; Marvulo, Maria Fernanda Vianna; Ragozo, Alessandra Mara Alves; Souza, S. L. P; Rñgo, M. J. P; Costa, D. G. C; Gennari, Solange Maria (Toxoplasma Centennial Congress: from discovery to public health management, 2008)