New clues emerge on how foods spark anaphylaxis

In mice studies, molecules that help allergens cross the gut lining seem to be key

A close-up view of brown, roasted peanuts.

Life-threatening anaphylaxis caused by foods may rely on a key molecular signal in the gut, two studies of mice suggest. The results raise the possibility of a drug that can block these dangerous reactions.

Pablo Jeffs Munizaga - Fototrekking/Getty Images

Severe allergic reactions can be swift and deadly.