Ticks that cause a rare, dangerous red meat allergy are spreading. What precautions can you take?
WBUR • • health
Key Points:
- Massachusetts has mandated reporting of alpha-gal syndrome, a tick-borne allergy to red meat and mammal products that can cause severe anaphylactic reactions, joining over a dozen other states in recognizing the condition.
- Alpha-gal syndrome is primarily caused by bites from the lone star tick and is spreading beyond its original hotspots in Arkansas, Kentucky, and Virginia, with estimates suggesting up to 450,000 Americans may have the condition, many undiagnosed.
- Symptoms can be delayed and range from hives and nausea to life-threatening anaphylaxis, making diagnosis challenging; patients must avoid mammal products and be vigilant about cross-contamination.
- Researchers like Dr. Tina Merritt have developed tests for alpha-gal and highlight that repeated tick bites may worsen or prolong the allergy, while prevention focuses on reducing tick exposure through repellents and protective measures.
- Awareness is growing, but patients like Tony Haigh emphasize the need for clearer food labeling and public education to manage risks, as alpha-gal can be present in unexpected products and environments.
