Distribution and prevalence of precipitating antibodies to aujeszkys disease virus in swine herds in the state of santa catarina brazil Romero, C.H.; Rowe, C.A.; Provenzano, G.I.; Floris, R.S.; Brentano, L.; Marques, J.L.L. Pesquisa Veterinaria Brasileira 4(4): 123-127 1984 0100-736X https://eurekamag.com/research/005/175/005175407.php