Severe allergic reactions can be swift and deadly. Two new studies of mice, published August 7 in Science, reveal a key step in this terrifying cascade. What’s more, these findings hint at a drug to prevent it.
Anaphylaxis is a life-threatening allergic reaction commonly triggered by insect stings, medications and foods such as peanuts or eggs. After exposure to the allergen, a person’s immune system can overreact, leading to swelling, trouble breathing and dangerously low blood pressure.
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