Question

Fill in the blanks:
1. Over-reaction of the immune system to a
substance that in most other people has no
effect is called.................
2. Diagnosis of allergy can be done by
test.............
entry routes of allergens include ..........., ..............and................​

Answer 1

Answer:

Fill in the blanks:

1. Over-reaction of the immune system to a  substance that in most other people has no  effect is called allergy.

2. Diagnosis of allergy can be done by  skin and blood test entry routes of allergens include skin, nose and mouth.