What are the non-infectious causes of diseases?

How does the $HIV$ virus affect the body and kill the affected person?

Fill in the blanks:
$(a)$ . . . . . . disease continues for many days and causes . . . . . . on the body.
$(b)$ . . . . . . disease continues for a few days and causes no long-term effect on the body.
$(c)$ . . . . . . is defined as physical,mental,and social well-being and comfort.
$(d)$ Common cold is a/an . . . . . . disease.
$(e)$ Many skin diseases are caused by . . . . . . .

Why do some children fall ill more frequently than others living in the same locality?

$(a)$ What is immunisation?
$(b)$ Categorise the following into acute,chronic,infectious,or non-infectious diseases: Typhoid,$TB$,Goitre,Elephantiasis.

Which one of the following is not important for individual health?