Percentage of B cells ant T cytotoxic and helper lymphocytes in milk from Streptococcus dysgalactiae infected quarters - Blagitz, Maiara Garcia; Souza, F. Nogueira; Santos, B. Parapinski; Batista, C. Freitas; Parra, A. Cristina; Azevedo, L. Fernandes; Melville, Priscilla Anne; Della Libera, Alice Maria Melville Paiva (World Buiatrics Congress, 2012)