allergic reaction

A medical condition in which the body's immune system reacts abnormally to a foreign substance, such as pollen, food, or medication, causing symptoms like sneezing, itching, or swelling.

ruМедицинское состояние, при котором иммунная система организма ненормально реагирует на чужеродное вещество, такое как пыльца, пища или лекарства, вызывая такие симптомы, как чихание, зуд или отёк.esRespuesta exagerada del sistema inmunitario del organismo ante una sustancia extraña, como polen, alimentos o medicamentos, que provoca síntomas como estornudos, picazón o hinchazón.frRéaction anormale du système immunitaire à une substance étrangère, comme le pollen, un aliment ou un médicament, provoquant des symptômes tels que des éternuements, des démangeaisons ou un gonflement.deEine Immunreaktion des Körpers auf eine normalerweise harmlose Substanz wie Pollen, Lebensmittel oder Medikamente, die Symptome wie Niesen, Juckreiz oder Schwellungen hervorruft.ptCondição médica em que o sistema imunológico reage de forma anormal a uma substância estranha, como pólen, alimento ou medicamentos, causando sintomas como espirros, coceira ou inchaço.zh免疫系统对某些外来物质（如花粉、食物或药物）产生的异常反应，可导致打喷嚏、瘙痒或肿胀等症状。arحالة مرضية يفرط فيها الجهاز المناعي في التفاعل مع مادة غريبة مثل حبوب اللقاح أو الطعام أو الأدوية، مما يسبب أعراضًا كالعطاس أو الحكة أو التورم.

1. Immune system response B1 formal

   A bodily response triggered by the immune system when it mistakenly identifies a harmless substance as a threat.

   • She had an allergic reaction to peanuts and broke out in hives.
   • His allergic reaction to bee stings requires him to carry an epinephrine injector.
   • The doctor diagnosed the rash as an allergic reaction to a new medication.

   ruАллергическая реакцияesreacción alérgicafrréaction allergiquedeAllergische ReaktionptReação alérgicazh过敏反应arرد فعل تحسسي

2. Symptoms of allergy B1 formal

   The physical signs and symptoms that occur when a person is exposed to an allergen.

   • Common symptoms of an allergic reaction include sneezing, itching, and swelling.
   • He experienced a severe allergic reaction after eating shellfish.
   • The allergic reaction caused her eyes to water and her throat to tighten.

   ruСимптомы аллергииesreacción alérgicafrréaction allergiquedeAllergische ReaktionptReação alérgicazh过敏反应arأعراض الحساسية