Novel peanut allergy breath test

Researchers from John Hunter Children’s Hospital have discovered that a simple breath test to determine the fraction of exhaled nitric oxide (FeNo) accurately confirms peanut allergy.

When combined with a blood test to determine antibodies to the peanut protein Ara h2, the researchers found they could more accurately predict the severity of anaphylactic reaction than with either test alone.

The pilot study involved 44 children who were scheduled for a peanut food challenge. They underwent