New Year’s Eve Anaphylaxis: Rising Grape Allergy Concerns Experts
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A potentially life-threatening allergic reaction, known as “New Year’s Eve anaphylaxis,” is gaining attention as more individuals experience severe responses to grapes consumed during traditional holiday celebrations. According to the United States National Library of Medicine, anaphylaxis is a severe, whole-body allergic reaction to a chemical ingested by a person.
The surge in cases is linked to a lesser-known allergen found in grapes – Lipid Transport Protein (LTP) – and is prompting medical professionals to urge caution and pre-holiday allergy testing. Symptoms of anaphylaxis, as outlined by the Mayo Clinic, can include skin reactions like hives, low blood pressure, a weak and rapid pulse, nausea, vomiting, and dizziness.
The 12 Grapes Tradition and the LTP Allergen
While grapes are readily available year-round, their consumption spikes dramatically on New Year’s Eve due to the tradition of eating 12 grapes at midnight for good luck. This rapid ingestion, however, can exacerbate a reaction in susceptible individuals. “Grape allergy is an increasingly common allergic reaction,” asserts a specialist in Allergology at the Quirónsalud Madrid University Hospital.
The issue isn’t simply a grape allergy, but a sensitivity to LTP, a plant panallergen present in numerous fruits and vegetables. “It is actually a plant panallergen located in numerous plant foods. In fact, is one of the main people responsible for severe allergic reactions with the intake of this type of food,” the expert explains. Peach skin is another common source of this protein.
Peach Allergy as a Precursor
The prevalence of LTP allergy is on the rise, and a common pattern has emerged. According to the expert, individuals often develop a primary sensitization to peaches, and then subsequently react to other fruits and vegetables containing LTP. “The most common thing is that primary sensitization occurs from peach and later this protein is recognized in different fruits and vegetables,” the specialist notes.
Diagnosing and Preventing New Year’s Eve Anaphylaxis
The potential for a severe reaction from consuming a dozen grapes in a short period necessitates proactive allergy testing. Individuals with suspected allergies to fruits of the Rosaceae family – including peaches, plums, cherries, apples, and pears – should be tested, particularly if they have existing allergies to other fruits or vegetables.
Several diagnostic tests are available:
- Prick test: A small amount of the LTP protein is applied to the skin to observe for a reaction.
- Skin prick-by-prick test: Uses the actual fruit (grapes, in this case) to assess a reaction.
- Blood test: Measures the amount of allergy antibodies specific to grapes.
- Provocation test: Conducted in a hospital setting under medical supervision, this test involves controlled exposure to the allergen.
Alternatives for a Safe Celebration
For those diagnosed with a fresh grape allergy, all hope for New Year’s Eve festivities isn’t lost. Canned grapes may be a viable alternative, as the processing can reduce the allergen content. However, the expert cautions, “However, this fact must be verified with the same allergy study, skin test and provocation test.”
Confirming an allergy before the New Year celebration is crucial to avoid a potentially dangerous situation. Taking preventative measures can ensure a safe and joyful start to the new year.
