Vaccinations are given to horses to prevent them from contracting life threatening diseases. Various vaccinations like Venezuelan viral encephalitis, Tetanus, western viral encephalitis and eastern viral encephalitis are very beneficial. But some of the vaccines cause side effects in the animals.
The symptoms could be as simple as fever, restlessness and swelling of legs or could be very adverse to the body by causing anaphylactic reactions. Hence care needs to be taken while administering the vaccines. If there are side effects, treatments need to be given immediately to protect the animal from further complications in case the injections do not suit the body.
For example, vaccination against West Nile virus could cause swelling in the front legs, fever, diarrhea and other systemic reactions like purpura hemorrhagica, urticaria and anaphylaxis. The vaccine is also found to cause abortions in mares. In the case intramuscular injections, horses may experience soreness, muscular swelling, lethargy and anorexia. If severe reactions occur, it could be really troublesome as the treatments take a long time to cure the allergic reactions.
Multiple vaccines should not be given together since over vaccination can increase the risk of adverse reactions. Also, some vaccinations may end up inactivating the antigens that are produced by others.
While administering the injections, note the vaccination serial number of code. In case of adverse reactions, this information could help in facilitating the investigation further. Avoid vaccinating the horse just 2 weeks before any performances, events, shows, domestic shipment or sales. Also, do not vaccinate horses within 3 weeks of shipping internationally.
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