This is a LONG read, but definitely worth it!
Myths About Thyroid Disorders, Vaccines in Pets
And the truth about thyroid disorders and vaccines.
BY W. JEAN DODDS, DVM
http://www.veterinarypracticenews.com/myths-about-thyroid-disorders-vaccines-in-pets/As a veterinarian for more than 50 years and still actively involved in our profession, I feel compelled to write about two legends that persist among us regarding thyroid disorders and vaccines. I deal with these misunderstandings every week, not only in communicating with colleagues but also from their frustrated clients.
Thyroid Disorders
We all realize that thyroid dysfunction disorders are the most commonly seen endocrine condition of dogs and the second most common of cats, after diabetes. We also know that dogs typically get hypothyroidism, that much of it is caused by heritable autoimmune thyroiditis and that older cats suffer from hyperthyroidism.
As the thyroid gland regulates metabolism of all body cellular functions, reduced thyroid function can produce a wide range of clinical manifestations, many mimicking those of other causes. Thus, recognition of the condition and interpretation of thyroid function tests can be problematic.