Biology, asked by ArmaanRajDhawan, 1 year ago

in allergic persons ,first exposure to an allergen does not cause ?

Answers

Answered by pmukherjee1102

Answer:

An allergic reaction occurs when the immune system overreacts to a harmless substance known as an allergen. ... The first time a person with an allergy is exposed to the allergen, it may not cause a reaction

Explanation:

As the body may not recognise the allergen.

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in allergic persons ,first exposure to an allergen does not cause ?​

Answers

in allergic persons ,first exposure to an allergen does not cause ?