If traces of bacterin are left in a syringe that is later used for a modified live product, the bacterin could destroy the modified live vaccine. Get the air out of syringes. After filling the syringe, pump it enough to move the vaccine up to the needle tip to insure there is no air trapped in the syringe. Air trapped in a syringe can be injected with the vaccine, causing the wrong dosage to be administered, or vaccine to leak from the injection site. Properly Restrain Animals.
Proper restraint is essential to minimize the risk of human injury.
It is also important for working cattle in a manner which will minimize the possibility of damage to the animal and to reduce the risk of injection site reactions. The label will provide an acceptable route of administration. The label may specify only one route of administration or it may give options. The best location for an injection is not necessarily the one that is the most convenient to get to. The best location is where the product will be most beneficial without the risk of damaging expensive cuts of meat or injuring the animal.