Where Does AGS Occur?

The Geography of Alpha-gal Syndrome

  • Alpha-gal syndrome is found on every continent except Antarctica.
  • In the U.S., alpha-gal syndrome is mostly found in areas where the Lone Star Tick lives.
  • Currently, the Lone Star Tick is found in the southeastern United States, all along the East Coast, and in the Midwest.
  • Lone Star Tick populations are growing.
  • The range of the Lone Star Tick is expanding.
  • Not surprisingly, alpha-gal syndrome is on the rise.

This map of self-reported cases will give you a sense of the distribution of alpha-gal syndrome in the United States. Some people who live in other parts of the world have also added pins, but far fewer, so it’s less helpful for other countries. 

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