For the passive immunisation of piglets by the active immunisation of pregnant gilts and sows in order to induce colostral antibodies against strains of Salmonella enterica subsp. enterica serovar Derby, S. enterica subsp. enterica serovar Infantis and S. enterica subsp. enterica serovar Typhimurium. In suckling piglets passive immunisation leads to a decrease in colonisation of inner organs (ileo-caecal lymph nodes, ileal wall and colon wall) by the above Salmonella serovars. Onset of immunity: passive protection commences from the start of colostrum intake. Duration of immunity: in naturally suckled piglets protection will persist for 30 days (in piglets weaned at 21 days of age). Dosage, application and vaccination scheme Vaccination dose 1 ml, intramuscularly behind the ear. Primary vaccination: The primary vaccination consists of two doses and is administered from 10 months of age: The first dose is administered 4 weeks before the expected parturition and the second dose 2 weeks later. Revaccination: In subsequent gestation periods administer one dose of the vaccine 2 weeks before each expected parturition.
