Rheumatic Fever - An inflammatory disease that may be caused by an untreated or improperly treated case of strep throat.⏎
Parasitism - A close relationship between two organisms in which one organism, the parasite, benefits at the expense of the host organism.⏎
Nanometer - A unit of length equal to one one-billionth (1 x 10-9) of a meter.⏎
Prion - A causative agent of infectious disease that is composed primarily of protein.⏎
Respiratory Tract - The part of the anatomy that has to do with the passage of air and includes the nose, larynx, trachea, and lungs.⏎