Show contagious diseases A contagious disease is on ono 0 in which the disease producing organism gm goes direct from rom ehg person having the dl disease s to a person who has not the disease without passing through an intermediary medium as in tuberculosis for or example malaria Ma larla on the other hand is an infectious disease because the organism which produces it is taken from a person by a mosquito reproduces itself in the mosquito and Is transmitted by the mosquito which may never have been in contact with tile the person by whom the original organism was as given off |