Prevention is better than cure because :-
i) When we suffer from a disease our body does not function properly.
ii) Even after treatment, we may take some time to recover completely. For example, an infection of tuberculosis requires prolonged treatment and can keep us bedridden for a long time.
iii) Even with proper treatment, we may not get well again. For example, an attack of polio can cause paralysis, the loss of control or feeling in some part of the body, usually legs.
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