plerocercoid การใช้

• If the poultice is infected with plerocercoid larvae, the human may become infected.
• The plerocercoid larvae are the infective stage for the definitive host ( including humans ).
• The third larval stage, the plerocercoid, grows in the abdomen of the fish.
• This condition is caused by the plerocercoid larvae of the tapeworm " Spirometra ".
• Once a human becomes infected, the plerocercoid larvae migrate to a subcutaneous location, where they typically develop into a painful nodule.
• Humans become infected by eating raw, undercooked, or marinated fish acting as a second intermediate or paratenic host harboring metacestodes or plerocercoid larvae.
• Humans are accidental hosts in the cycle, becoming infected with the plerocercoid larvae by contact with or ingestion of the first or second intermediate hosts.
• Some species infect gamefish, such as sciaenids, during the parasitic worm's plerocercoid stage, and are commonly called "'spaghetti worm "'because of their appearance, approximating cooked spaghetti.
• Following ingestion of the copepod by a suitable second intermediate host, typically a minnow or other small freshwater fish, the procercoid larvae are released from the crustacean and migrate into the fish's flesh where they develop into a plerocercoid larvae ( sparganum ).