Vaccination helps to prevent serious infections such as rabies, hepatitis, leptospirosis, parvovirosis in dogs; panleucopenia, chlamydiosis, cat flu, feline
leukaemia in cats or myxomatosis and haemorragic enteritis in rabbits, for example.
In a letter to Veterinary Times during July 1999, veterinarian Lyn Thomson responded, «This would indicate that veterinarians must consider and report the whole range of immune mediated diseases post
vaccination, including flea allergy, atopic dermatitis, dietary hypersensitivity, contact hypersensitivity, asthma, autoimmune diseases, lymphoma, lymphoid
leukaemia, multiple myeloma, plasmcytoma, hisiiocytoma, thymoma, and immunodeficiency disease.»