Tuberculosis (TB) Vaccine (BCG)
The Tuberculosis (TB) vaccine (BCG — Bacillus Calmette-Guérin) is now rarely offered as part of routine UK healthcare. However, it remains strongly recommended for individuals who may be at increased risk of TB exposure through travel, occupation or close contact. At St Mary’s Pharmacy & Clinic, we provide a private, medically screened TB vaccination service, delivered by a trained and certified vaccinator using the specialised intradermal injection technique required for this vaccine.
Who Should Consider the TB Vaccine?
You may benefit from vaccination if you:
Travel for extended periods to countries with high TB prevalence
Work in healthcare, laboratories, prisons or refugee settings
Have close contact with individuals from high-incidence regions
Require TB protection for employment or visa purposes
Missed neonatal BCG vaccination and now fall into a risk group
Unlike most travel vaccines, the TB vaccine can only be given after ruling out active or latent TB infection.
Interferon-Gamma Release Assay (IGRA / TB Interferon Gold Test) This confirms that:
Blood Test (IGRA)
Interferon-Gamma Release Assay (TB Interferon Gold Test) Used to confirm that TB infection is not present before vaccination.
Clinical Review
Medical assessment to ensure the vaccine is safe and suitable for you.
BCG Vaccination
The vaccine is administered using a specialised intradermal injection technique.
Follow-Up / Aftercare
Guidance on expected local reaction and healing process.
🧪 Mandatory Screening Before Vaccination
Unlike most travel vaccines, the TB vaccine cannot be given until active or latent TB infection has been excluded.
Blood Test Required
IGRA / TB Interferon Gold Test A blood test is needed before vaccination
What This Confirms
You do not already have TB infection, vaccination is safe and appropriate, and the risk of severe local reactions or complications is minimised.
Vaccination After Negative Result
Vaccination can only proceed once a negative result is confirmed. We can arrange the blood test as part of your appointment pathway.
How the Vaccine Is Given
Intradermal Technique
The TB vaccine is not injected into muscle or fat. It is given using a precise intradermal technique into the upper arm by trained vaccinators.
Why This Method Matters
This specialist technique is essential for correct immunity and helps minimise complications.
What to Expect
• Small raised bleb immediately after injection. • Mild local ulcer after 2–6 weeks. • Small permanent scar (normal and expected).