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Jackfruit (Artocarpus heterophyllus), otherwise known as breadfruit, is a member of the mulberry family. Allergic reactivity to jackfruit has only rarely been reported. We describe five cases of jackfruit allergy in people of Asian origin evident several years after their migration to the UK. All the patients had a long history of Seasonal Allergic Rhinitis (SAR) and allergic reactivity to fresh fruit such as apples and peaches as part of an Oral Allergy Syndrome (OAS). Skin testing with the raw jackfruit was confirmatory but blood tests in all but two of the cases were negative.
Outline details of five patients with jackfruit allergy are provided below. The critical details of the symptoms surrounding allergic reaction to jackfruit, symptoms indicative of Oral Allergy Syndrome (OAS) and the blood and skin prick testing results are all provided.
A 49-year-old woman of Indian origin developed features of a systemic allergic reaction within 2 minutes of consuming roughly 10gms of fresh jackfruit. Emergency treatment with anti-histamines, hydrocortisone and adrenaline was used by the ambulance crew and she had improved significantly on reaching hospital. Despite an allergic reaction to fresh apple 6 years previously, she was still able to tolerate commercial long life apple juice and there were no other fruit sensitivities. She had moderate asthma and there was no indication of latex or kiwi fruit allergy.
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