The Influence of Passive Immunity on Serological Responses to Mycoplasma hyopneumoniae Vaccination
The Influence of Passive Immunity on Serological Responses to Mycoplasma hyopneumoniae Vaccination
Date
1998
Authors
Thacker, Brad
Boettcher, Tamara
Anderson, Tammy
Thacker, Eileen
Young, Theresa
Boettcher, Tamara
Anderson, Tammy
Thacker, Eileen
Young, Theresa
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Abstract
Vaccine induced serum antibody levels were significantly less in pigs with passive immunity to Mycoplasma hyopneumoniae compared to pigs without passive immunity. Age at vaccination did not influence antibody responses to vaccination. The presence of passive antibodies at the time of vaccination may provide an explanation for vaccination failure under field conditions.