Which of the following is the intermediate host for the dog tapeworm?

Which of the following is the intermediate host for the dog tapeworm?

Canids and felids are the normal hosts for Dipylidium caninum. The intermediate host is usually the larval stages of the dog or cat flea (Ctenocephalides spp.) and occasionally Trichodectes canis (the dog louse).

What Filariid nematode genus and species of dogs uses Ctenocephalides felis as an intermediate host?

Ctenocephalides felis, C. canis and P. irritans are intermediate hosts for the filarial nematode Acanthocheilonema reconditum, transmitted via their bites to dogs and human beings and a cause of subcutaneous infection in animals and ocular disease in humans [46–48].

What Felis eats Ctenocephalides?

Fleas of the order Siphonaptera are insects that feed on the blood of a mammalian host.

How can humans become intermediate hosts of the dog tapeworm?

The dog is the principal host for Dipylidium caninum, humans can also become infected by ingesting the cystercoid-contaminated fleas. In the small intestine of the vertebrate host, the cysticercoid develops into the adult tapeworm, which reaches maturity about 1 month after infection.

What is an intermediate host in microbiology?

Definition of intermediate host 1 : a host which is normally used by a parasite in the course of its life cycle and in which it may multiply asexually but not sexually — compare definitive host.

Which organism is the intermediate host for Taenia Pisiformis?

Background. Taenia pisiformis is the most common taeniid tapeworm of dogs in the United States and is also found in foxes and less frequently in other carnivores. Rabbits serve as an intermediate host.

Is Dipylidium a tapeworm?

Dipylidium is tapeworm of cats and dogs.

Where is Ctenocephalides felis found?

The dog flea, Ctenocephalides canis (Curtis), appears similar to the cat flea, but is rarely found in the United States. Cat fleas are commonly found on both cats and dogs in North America, while dog fleas are found in Europe.

Do fleas have an intermediate host?

Fleas may play different roles as parasites in mammals. They may act as vectors to transmit pathogens. They may play a role as intermediate hosts of parasites and can be an ectoparasitic nuisance in animals and humans which may cause allergic reactions.

Is Ctenocephalides felis zoonotic?

Cats and cat fleas (Ctenocephalides felis) are vectors of the zoonotic bacterial pathogens Bartonella henselae and Rickettsia felis, which are the causative agents of “cat scratch disease” and “cat flea typhus,” respectively.

How can a person acquire a tapeworm?

Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae. If you ingest certain tapeworm eggs, they can migrate outside your intestines and form larval cysts in body tissues and organs (invasive infection).

What is intermediate host in parasitology?

The intermediate host is the host which harbors the larval stage or the asexual forms of the parasite. Few parasites require two different intermediate hosts in addition to a definitive host. Parasites are transmitted by various routes.

Is Ctenocephalides felis an obligate ectoparasite?

Ctenocephalides felis is an obligate ectoparasite whose main hosts are cats. Cat fleas also parasitize dogs, rabbits, horses, skunks, foxes, mongooses, koalas, and poultry. Cat fleas are vectors for murine typhus and intermediate hosts of the most common tapeworm that infects cats and dogs, Dipylidium caninum.

What is the medical importance of Ctenocephalides?

Ctenocephalides spp. are of medical importance as vectors of rickettsial diseases, including Rickettsia typhi, and may serve as intermediate hosts for tapeworms, including Hymenolepis and Dipylidium. Figure A: The cat flea, C. felis.

What are the primary hosts for Ctenocephalides felis and Xenopsylla cheopis?

The primary hosts for Ctenocephalides felis and C. canis are cats and dogs, respectively, although other mammals, including humans, may be fed upon. The primary hosts for Xenopsylla cheopis are rodents, especially rats. In North America, plague (Yersinia pestis) is cycled between X. cheopis and prairie dogs.

What are the genal and pronotal ctenidia of cat fleas?

Adult cat fleas have well-developed genal and pronotal ctenidia ( Figs. 7.2A and 7.3) and can be distinguished from the dog flea ( C. canis) by the longer head and longer first spine in the genal comb in C. felis. For further details on the biology of the cat flea, see Dryden (1993) and Rust and Dryden (1997). Jennifer Stokes,