TB Testing

What is a titer test?

A titer blood test is utilized to ascertain prior infections and the necessity for specific immunizations. This analysis detects and quantifies the antibodies present in an individual's blood.

When should a titer test be conducted?

Certain educational institutions, healthcare facilities, or specific occupations may mandate evidence of vaccination against particular infectious agents. Immunization history can be confirmed through two means:

  • Vaccination records from healthcare providers: Typically, the primary form of proof is documentation from those who administered the immunization.

  • When these records are unavailable: A blood titers test can provide the necessary documentation that a school or workplace may require.

What do the results of titer testing determine?

  • Whether a vaccine has effectively enabled your immune system to safeguard against a specific disease

  • If an immunization has elicited a sufficiently robust response to provide protection against a specific disease

  • Whether you have encountered a recent or past infection, such as mononucleosis or hepatitis

  • Whether you recently experienced or are currently battling an infection

What are the types of immunity?

Active immunity: Developed through prior infection or vaccination, the body's immune system generates antibodies and cellular immunity, typically lasting for years or a lifetime.

Passive immunity: Transferred from sources like mother to infant or through blood products like immune globulin, this type of immunity usually provides temporary protection for weeks to months.

How do I interpret the test results?

Positive titers suggest exposure to a specific pathogen or vaccination for it, indicating adequate immunity to that infectious disease.

Negative titer results signify no immunity to a particular disease, prompting a potential requirement for vaccination by your school or workplace.