dipylidium�ninum c

O

Adult flea harbours the mfective cysticercołd

O

Host is Infected by mgesting fleas’ contaming cysticercołd.

Humans, normally children. acquire the infedion by mgesting the infected flea.

Infected larval stage develop into adult

Scolex attaches in intestine

^ Adult in smali intestine

Each proglottid contams egg packets that are held together by an outef embryonłc membranę (see©)

The progłottids disintegrate and release the egg packets.

Oncosphęre Cysticercołd Oncospheres hatch from the eggs and penetrate the _N intestinal wali of the Q lan/ae. Cysticercoid larvae devetop in the body cavity.

Egg packets containmg embryonated eggs are ingested by larval stage of flea

A= Infectwe Stage A- Diagnostic Stage

http://www.dpd cdc.gov/dpdx