Bacterial parasites that cause disease are called pathogens. Among bacterial plant diseases are leaf spot, fire blight, and wilts; animal diseases caused by bacteria include tuberculosis, cholera, syphilis, typhoid fever, and tetanus.
Definition of cascade 1: a steep usually small fall of water; especially: one of a series 2 a: something arranged or occurring in a series or in a succession of stages so that each stage derives from or acts upon the product of the preceding
They are primarily used as an aroma hop in the last half of the boil. Cascade is often described as having a citrus quality like tangerines, oranges or grapefruits. Cascade forms the backbone for the American Pale Ale and American IPA styles.