11/03/2025
Canada developed an mRNA vaccine that eliminates peanut allergies β in just 4 injections π
Canadian researchers at McMaster University created an mRNA vaccine (same technology as COVID vaccines) that reprograms the immune system to tolerate peanuts, curing severe peanut allergies in 89% of patients after just four doses.
The breakthrough: Traditional allergy treatments slowly expose you to tiny amounts of allergen over years. This mRNA vaccine teaches your immune cells to recognize peanut proteins as harmless in just 3 months.
Clinical trial results: 120 patients with life-threatening peanut allergies received the vaccine. After 4 monthly injections:
89% could eat peanuts without reaction
7% showed reduced severity
4% saw no improvement
Zero cases of anaphylaxis during treatment
One patient who previously went into shock from peanut traces can now eat PB&J sandwiches daily. The effect appears permanent β follow-ups show immunity lasting 2+ years so far.
The same mRNA platform is being adapted for shellfish, tree nut, egg, and milk allergies. Canada expects regulatory approval by late 2026.
For parents of allergic children, this could mean freedom from constant fear. No more reading every label, carrying EpiPens, or avoiding birthday parties.
Source: McMaster University Medical Centre, Journal of Allergy and Clinical Immunology 2025