Sow Vaccination with a Protein Fragment against Virulent Virulent G parasuis strains can cause fibrinous polyserositis called Glässer's disease Colostrum is a source of passive immunity for young piglets When vaccinating sows, protective antibodies are transferred to their offspring through the colostrum
Program of vaccination and antibiotic treatment to control . . . The present study demonstrated that maternally derived H parasuis-specific humoral and cell-mediated immunity can be passively transferred to newborn piglets after sow vaccination against H parasuis: H parasuis-specific lymphocyte proliferation and IFN-γ-SCs were detected by stimulating PBMCs with H parasuis antigen, whereas colostral
Serologic profiling of Haemophilus parasuis–vaccinated sows . . . Given the short duration of passive immunity in piglets that was demonstrated in the current study, vaccination of litters to confer active postweaning immunity may be equally relevant as sow vaccination for protecting the herd against a clinical outbreak
Influence of parity of birth and suckled sows on piglet nasal . . . A potentially reduced passive immunity of piglets born to primiparous sows due to their lower colostrum yield and IgG content may impact the dynamics of mucosal colonization of bacteria such as H parasuis
Haemophilus parasuis – a battle of epidemiology and diagnostics piglets When present, MDA will protect the piglets against an early infection with H parasuis This passive pro - tection will last for a couple of weeks depending on the antibody titers in the sows and the colostrum uptake of the piglets When these piglets are raised on H parasuis infected farms, vaccination of the piglets is indicated and
Sow vaccination modulates the colonization of piglets by Bacterial isolation from nasal swabs showed that 50% of piglets from non-vaccinated sows carried H parasuis at 7 days of age in sufficient quantity to yield a positive culture, while just 25 8% of piglets from vaccinated sows were culture-positive at a later time, 24 days of age
Evaluating passive immunity in piglets from sows vaccinated . . . Results demonstrated that the S protein subunit vaccine induced significantly higher IgG and neutralizing antibody levels in both piglets and sows compared to the inactivated vaccine Piglets born to immunized sows were challenged with a virulent PEDV strain