Mammalian Meat Allergy
Tick bites can cause mild to life-threatening allergic reactions to mammalian meats such as beef, pork, lamb, kangaroo, goat and venison.
The tick bites occur before any allergic reactions to mammalian meats. The allergic reactions to meat are typically delayed for 2-10 hours after eating the meat. The allergen in the meat to which people react is called “alphagal”.
Some people are so sensitive to alphagal, they react to mammal products, particularly, their milks and gelatine. Any product derived from mammals may cause allergic reactions, making avoidance very difficult as the allergen may be found in a wide range of agents used in medical treatments, as well as in foods.
Content updated January 2017