COMMUNICABLE DISEASES ARE CAUSED BY PATHOGENS
COMMUNICABLE DISEASES ARE TRANSMITTED IN DIFFERENT WAYS
pathogens infect both animals and plants and spread in different ways
- WATER-some pathogenscan be picked up by drinking or bathing in dirty water.e.g. cholera. It spreads when drinkin water is comtaminated with the diarrhoea of other sufferers.
- AIR-some pathogens are carried in air e.g. hymenoscypus fraxineus, it is transmitted from infected plants, through the air by the wind. …