Sixth edition Philadelphia. Although concentration methods are usually not necessary due to the large size of the proglottids, flotation methods may miss infections as egg packets are heavy and may fail to float.Molina, C.P., Ogburn, J. and Adegboyega, P., 2003. The gravid proglottids once out of the definitive host release eggs. Overview of Life Cycle. CDC twenty four seven. Though not a pathology of the diplydiasis, the most unnerving sign of the infection is the presence of proglottids in the animals, or child’s, feces. Dogs and cats infected with Dipylidium caninum shed egg-laden proglottids in their feces. For an overview including prevention, control, and treatment visit To receive email updates about this page, enter your email address: Despite human diplydiasis being rare, instances have been reported from every inhabited continent.Human instances of diplydiasis are reported globally, and unsurprisingly roughly one third of the cases occur in children less than 6 months of age. It is the most common tapeworm of dogs and is relatively common in cats. The adult flea or … These proglottids can also be found near the perianal region, in the feces, and in diapers (children). The child had no apparent signs or symptoms.

The intermediate host is usually the larval stages of the dog or cat flea (Ctenocephalides spp.) Gravid proglottids are passed intact in the feces or emerge from the perianal region of the host Humans also acquire infection by ingesting the cysticercoid contaminated flea. The definitive host within this life cycle is primarily canines, and occasionally felines, and in rare cases young children. Mother found motile proglottids the child’s diaper, later identified as D. caninum. Life cycle Usually tapeworm eggs are ingested by flea larvae, which infest areas frequented by dogs or cats Cysticercoid larvae persist as the flea undergoes metamorphosis to the adult stage Dogs, cats and humans ingest the adult flea containing the infectious cysticercoid Centers for Disease Control and Prevention. The most at-risk age group is those that range from 2 months to 4 years in old. This could result in the ‘butt-scooching” across the floor, grass or carpeting. A puppy in the household was found to be infected and thus was the source of the child infection.As with most tapeworm infections, the drugs of choice are Bowman DD. The intermediate hosts include fleas (This parasite occurs worldwide in animals, such as dogs and cats, as well as in humans, though to a significantly lesser degree. Life cycle Usually tapeworm eggs are ingested by flea larvae, which infest areas frequented by dogs or cats Cysticercoid larvae persist as the flea undergoes metamorphosis to the adult stage Dogs, cats and humans ingest the adult flea containing the infectious cysticercoid
Human infection is rare, but has been reported from every inhabited continent.The diagnosis is made by demonstrating the typical proglottids or egg packets in the stool or the environment.

The first stage in the life cycle is when the gravid proglottids are either passed out through fecal matter, or actively crawl out of the anus of the host. Saving Lives, Protecting People

and occasionally Trichodectes canis (the dog louse). The second additional case occurred in an 18-month-old male. The intermediate hosts include fleas (Ctenocephalides spp.) Georgis‘Parasitology for Veterinarians. Pets behavior may reflect the presence of anal discomfort and itching, or pruitis. The presumed source of infections was one of the family’s  four Labrador retrievers, two of which were found to already have been infected with D. caninum. Canids and felids are the normal hosts for Dipylidium caninum. Dipylidium caninum has an indirect life cycle that requires fleas or lice as intermediate hosts.