What is allergy? Name the common allergens that cause allergies in human beings.

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Solution

When a person shows hyper-response or-hypersensitivity to a common antigen or agent them it is called an allergy. The agents that cause allergies are called allergens. Common allergens are pollen grains, food items like fish or egg. cold, heat, fibers, sunlight, medicines (penicillin), etc.

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