Question

what is immuno deficiency diseases

Answer 1

the disease which cause your immune system to malfunction and its breakdown are termed as immuno deficiency disease.
it's most famous example is AIDS which is still incurable

Answer 2

immunodeficiency disorders prevent your body from fighting infections and diseases. This type of disorder makes it easier for you to catch viruses and bacterial infections. Immunodeficiency disorders are either congenital or acquired. A congenital or primary disorder is one you were born with
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ex....AIDS ( aquired immune deficiency syndrome) caused by HIV ( Human immunodeficiency virus)