The Life Cycle of Spirometra mansoni Life cvcle Scolex Requires two s普 Adult intermediate hosts and Gravid one definitive host proglottids final host Immatul adult DOG MAN CA Coracidium the second the first Six-hooked intermediate host intermediate host oncosphere Plerocercoid Procercoid
Life cycle Requires two intermediate hosts and one definitive host
Definitive host: dog cat etc 4. 1st intermediate host: fresh water copepod o 2nd intermediate host: frog .o Transport(paratenic/transfer) host: snake, bird, mammal . Human can serve as the second intermediate host transport host and even the definitive host (rarely) o Infective stages: plerocercoid /sparganum(transport host), procercoid( the second intermediate host
❖ Definitive host: dog, cat etc ❖ 1 st intermediate host: fresh water copepod ❖ 2 nd intermediate host: frog ❖ Transport (paratenic/transfer) host: snake, bird, mammal ❖ Human can serve as the second intermediate host, transport host and even the definitive host (rarely) ❖ Infective stages： plerocercoid / sparganum(transport host), procercoid (the second intermediate host)