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Seropositive cattle should be identified and culled and none of their progeny should be bred from.  
 
Seropositive cattle should be identified and culled and none of their progeny should be bred from.  
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Select seronegative cattle for breeding
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Seronegative cattle should be selected for breeding.
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Vaccinate is possible but only in the USA.
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[[vaccine|Vaccination]] is possible but only in the USA.
 
It is a killed protozoal vaccine for healthy, pregnant cows and is given in the first 3 weeks of pregnancy and then every 3-4 weeks during gestation.
 
It is a killed protozoal vaccine for healthy, pregnant cows and is given in the first 3 weeks of pregnancy and then every 3-4 weeks during gestation.
 
Revaccination with 2 doses should be undertaken during each subsequent pregnancy.
 
Revaccination with 2 doses should be undertaken during each subsequent pregnancy.
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