The egg packets are likely to be dropped in the same places as the eggs of the intermediate host, the [[Fleas|flea]]. When ingested by the flea larvae, the oncosphere transforms to a cysticercoid which is infective by the time that metamorphosis is complete. Flea infestation provokes exaggerated grooming behaviour and the cat or dog becomes infected with Dipylidium, when it swallows infected [[fleas]]. Prevention of re-infection therefore requires advice on flea control. | The egg packets are likely to be dropped in the same places as the eggs of the intermediate host, the [[Fleas|flea]]. When ingested by the flea larvae, the oncosphere transforms to a cysticercoid which is infective by the time that metamorphosis is complete. Flea infestation provokes exaggerated grooming behaviour and the cat or dog becomes infected with Dipylidium, when it swallows infected [[fleas]]. Prevention of re-infection therefore requires advice on flea control. |