Parasitic disease
A parasitic disease, also known as parasitosis, is an infectious disease caused by parasites. Parasites are organisms which derive sustenance from its host while causing it harm. The study of parasites and parasitic diseases is known as... Wikipedia
7 Common Parasites — A Look Into 7 Common Parasites in Humans – ActiveBeat – Your Daily. Learn more about 7 parasites that regularly make a home in humans.