A titre test is a small blood sample collected and sent to a lab to check a dog’s level of immune defenses. This test will help determine whether a dog requires annual vaccinations.
The term “titre” refers to the strength or concentration of a substance in a solution. When testing is done for titre, the blood is checked for the presence and strength of the dog’s immunological response to a viral disease. If the pet has satisfactory levels of vaccine titre, the pet is considered sufficiently immune to diseases or possesses good immunologic memory and does not need vaccination for that year.