No. Severe allergic reactions (anaphylaxis) to Covid-19 vaccines are extremely rare, occurring in about 2 to 5 people per million doses. Most post-vaccine reactions are non-allergic side effects.
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Diagnostic Test
Covid Vaccine Allergy Test
For patients who have had reactions or are concerned about vaccine components.
Duration:30–45 minutes

Overview
Covid Vaccine Allergy Testing is designed for individuals who experienced an immediate reaction (hives, breathing difficulties, swelling) after receiving a Covid-19 vaccine, or who have a history of severe allergies to vaccine excipients like Polyethylene Glycol (PEG) or Polysorbate 80. This test ensures safe subsequent doses.
How It Works
- Excipient Analysis: Reviewing the components of the vaccine causing concern.
- Skin Testing: Prick and intradermal testing using dilute excipients or vaccine samples where appropriate.
- Graded Dosing: Administering vaccine doses under strict clinical observation if cleared.
What to Expect
- A screening process typically taking 30 to 45 minutes.
- Detailed risk assessment and guidance on which vaccine platform is safest for you.
- Immediate medical backup during and after the testing.
Who Is It For?
- Patients who had a suspected anaphylactic reaction to their first Covid-19 vaccine dose.
- Individuals with a known allergy to PEG (found in laxatives, medications) or Polysorbate.
- High-risk allergy patients seeking clearance before vaccination.
Frequently Asked Questions
Polyethylene Glycol (PEG) is an active ingredient in some vaccines and laxatives. Sensitization to PEG is rare but can cause severe immediate allergic reactions. Testing helps rule this out.
Take the next step
Interested in booking a covid vaccine allergy test? Consult our specialists.
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