3. Entry routes of allergens include and
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Entry routes of allergens include.
Explaination
With food they can enter in the mouth and stomach and cause disease.
Airborne allergens can enter through nose or when another person sneezes.
They can enter through circulatory system when contaminated blood transfusion occurs contain lot of deadly or disease causing microorganisms.
They also can enter through skin when Physical contact occurs with infected person like fungi infection spread from combs,or infected clothes.
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