RHINISENG® is a vaccine against progressive (PAR) and nonprogressive atrophic rhinitis (NPAR) indicated for pregnant sows and gilts to passively protect their offspring. The RHINISENG® recommended vaccination scheme includes a basic vaccination scheme (vaccination 8-6 weeks before farrowing and revaccination 4-3 weeks before farrowing) and a booster dose (4-3 weeks before the subsequent farrowing). This study evaluated the vaccine field efficacy of the basic vaccination scheme and the booster dose.
RHINISENG®: Field efficacy
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Swine
RHINISENG® significantly reduced the atrophic rhinitis lesions
until the end of the fattening period (Figure 1) in actively infected
pigs and also reduced the slaughter age (Figure 3). A significant
seroconversion to PMT and Bb was induced in actively immunised
sows, both after applying the RHINISENG® basic vaccination
scheme and after boosting during the subsequent gestation
(Figure 2). These antibodies were effectively transferred via
colostrum to protect their offspring.