Which of the following is not an infectious disease?

Classify the following diseases into communicable and non-communicable diseases:
$(a)$ Cancer
$(b)$ High blood pressure
$(c)$ Common cold
$(d)$ Diabetes
$(e)$ Tuberculosis
$(f)$ Night blindness
$(g)$ $SARS$
$(h)$ Typhoid
$(i)$ Cholera
$(j)$ Dengue

Which one of the following has a long-term effect on the health of an individual?

State whether the following statement is true or false:
High blood pressure and cancer have mostly external causes and are generally caused by infectious agents.

Health is not merely the absence of disease. How can we define health? Classify diseases on the basis of:
$(i)$ Duration of the diseases:
$(ii)$ Cause of the diseases. Give one example of each type.

$(a)$ What are the two ways by which an infectious disease can be treated?
$(b)$ Explain the mode of action of antibiotics.