Horse Veterinary Questions? Ask an Equine Vet.
Good Afternoon and welcome! I am Dr. Loretta, a licensed veterinarian and I am happy to answer your question.
Good job! It is not unusual for another horse to be brought to a new place where your horse has not been exposed to this infection that the new one has and thus, your horse does not have any immunity against this infection. The vaccines cover some upper respiratory diseases but not all and the recommended treatment for an upper Respiratory infection is Trimethoprim Sulfa given every 12 hrs according to the dose. Be sure to isolate these 2 horses from the others if there are others and in most cases, this will resolve quickly. If it does not and the horses manitain fevers, you must have your vet run tests to determine the best course of treatment for both horses involved.
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