British scientists have developed a far more accurate blood test to diagnose peanut allergy, offering a better way to monitor a significant food hazard.
Peanuts are the most common cause of fatal food-induced anaphylaxis, or severe allergic reaction, and allergy cases among children have risen sharply in recent years. Britain’s Food Standards Agency estimates up to one in 55 children have a peanut allergy.
In contrast to existing skin-prick and other blood tests that produce a large number of false positive results, the new diagnostic has 98 percent specificity, researchers from the Medical Research Council (MARC) reported . . .
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