Ausência de anticorpos contra o vírus da doença de Aujeszky em suínos no Estado do Rio Grande do Sul / Absence of antibodies to Aujeszky virus in swine in the State of Rio Grande do Sul, Brazil

A serological survey was carried out on 16.305 swine sera collected over a eight year period (1987-1994) from various municipalities of the State of Rio Grande do Sul, Brazil, in search for antibodies to Aujeszky's disease virus (ADV), using ELISA and serum neutraliozation tests. All sera examined were negative for ADV antibodies. These results suggest that ADV is not present in an enzootic form in swine in that State