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A female US Army soldier went into anaphylactic shock caused by a combination of dinner, drinks and dancing at a wedding, despite not having any known allergies.
Researchers at Walter Reed National Military Medical Center delved into the unidentified 32-year-old's unprecedented case in a new report published Thursday.
Wedding - Woman - Dance - Floor - Steak
At the wedding, the woman hit the dance floor after having eaten a steak, vegetables and crab cakes, which she washed down with one cocktail and one glass of red wine.
The report says she was dancing 'vigorously' when a rash began to develop on her shoulder, spreading rapidly to her chest, arms, neck and face, one of the first signs of an allergic reaction.
Throat - Tongue - Point
Her throat then became itchy, tongue started to swell to the point that she couldn't breathe.
Emergency personnel identified the symptoms as anaphylactic shock and treated her with allergic medicines before bringing her to the hospital, where her symptoms disappeared within four hours.
Weeks - Allergist - Food - Allergy - Condition
Weeks later her allergist diagnosed her with food dependent exercise-induced allergy to crab, a rare and potentially fatal condition.
Food-dependent exercise-induced anaphylaxis (FDEIAn) occurs when a person exercises within a few hours of eating a certain food that they are hypersensitive to, triggering an allergic reaction.
Food - Exercise - Reaction
Eating the same food without exercise, however, would not cause a reaction.
FDEIAn is a rare subset of anaphylaxis, a potentially-fatal type of allergy that affects less than one percent of the population.
Lifetime - Prevalence - FDEIAn - Quarter - Percent
Lifetime prevalence for the FDEIAn is estimated to be less than one quarter of a percent.
Doctors have struggled to identify exactly how the condition occurs, in part because there have been so few...
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