Hydatids, also spelled hydadids, are cysts that contain a watery fluid. They occur in the tissues of people, sheep, and some other animals. Hydatids are formed by, and contain, tapeworm larvae (young). Hydatid disease is dangerous to human beings. Cats and dogs may carry the disease. If the pet comes in contact with an infected animal’s waste that contains the cysts, tapeworm larvae may cling to the pet’s hair. People may then pick up the disease by handling the pet. For this reason, people should wash their hands after handling a cat or dog. People may also get the disease by eating contaminated raw fruits or vegetables. In sheep-raising countries, the disease presents a major health problem.
See also Tapeworm .
