Story perspectives

450,000 Americans Face Tick-Borne Alpha-Gal Syndrome Risk

9/7/2025

36 3

Summary

Story summary

Alpha-gal syndrome, often misnamed "red meat allergy," is a delayed allergic reaction linked to tick bites.
The CDC estimates that up to 450,000 people in the U.S. may be affected, with global spread.
Tick species like the lone star and black-legged ticks can trigger this allergy.
Symptoms usually appear one to three months post-tick bite.
Management involves avoiding mammal-derived foods and having an EpiPen for severe reactions.
Ongoing research explores the syndrome's mechanisms and its potential link to heart disease.

1 of 1

Story summary

Alpha-gal syndrome, often misnamed "red meat allergy," is a delayed allergic reaction linked to tick bites.
The CDC estimates that up to 450,000 people in the U.S. may be affected, with global spread.
Tick species like the lone star and black-legged ticks can trigger this allergy.
Symptoms usually appear one to three months post-tick bite.
Management involves avoiding mammal-derived foods and having an EpiPen for severe reactions.
Ongoing research explores the syndrome's mechanisms and its potential link to heart disease.