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Optimum time of vaccination |
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| The optimum time of vaccination is: |
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Early enough to develop active immunity prior to infection with M. hyo | |
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Late enough for the vaccine not to be affected by maternal antibodies | |
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From an immunological point of view, the optimum time to vaccinate against M. hyo will vary according to the infection situation in the herd and will usually be between three and five weeks of age. |
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| * The mean antibody level in the colostrum of the sows was taken as representative value of the antibody level in the blood of the new born piglets (P). | |
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The antibody response starts approximately three weeks after a natural infection. New research indicates that on average the earliest stage when antibodies can be detected is at 12 weeks of age, which indicates infection occurring at the earliest at nine weeks of age. To allow the piglets to develop adequate vaccine protection, the vaccination should be administered three to five weeks prior to the time of infection, i.e. approximately at four weeks of age. |
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Summary: |
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The optimum time of vaccination to provide the best protection from three weeks of age and in advance of natural infection. | |
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