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Peanut Allergy Misdiagnoses Common in Infants
5 Nov
Summary
- One-third of infants with suspected peanut allergy may be misdiagnosed.
- A supervised food challenge can confirm or rule out peanut allergy.
- Accurate diagnosis is crucial to avoid unnecessary avoidance diets.
New research suggests that more than a third of infants initially suspected of having a peanut allergy might be misdiagnosed. This finding emerged from an Australian study evaluating infants under 18 months. A significant percentage of babies with a suspected peanut allergy, based on their history and allergy tests, were later found not to react during supervised food challenges.
These supervised oral food challenges, where infants are given increasing doses of peanut under medical observation, are crucial for accurate diagnosis. While many infants did react and proceeded to oral immunotherapy, a substantial portion did not. This indicates that clinical history and allergy testing alone are insufficient for many cases, emphasizing the need for these challenges before initiating treatment or avoidance strategies.
