Cestodes Flashcards
Do cestodes have intermediate hosts?
Yes
Where do adult cestodes live?
In the intestine
What do cestodes look like?
Long flat worms divided into segments
What are the two segments of cestodes?
Scolex and proglottids
What type of worm is dipydium caninum?
Tape worm
How long does dipylidium caninum get?
50cm long
What follow is dipylidium caninum?
Light reddish to yellow
How is dipylidium caninum diagnosed?
Proglottids in feces
What are two things dipylidium can cause?
Malnutrition and perinatal irritation
How is dipylidium caninum controlled? 2
Eliminate intermediate host and treat infected animals
What type of worm is taenia pisiform is?
Tape worm
How long does taenia pisiform is get
200cm
What are three symptoms of taenia pisiformis?
Diarrhea, intestinal obstruction, damage to intermediate host
What is the prepatent period for taenia pisiformis?
2 months
What is the prepatent period for dipylidium caninum?
1 month
How do you control taenia pisiformis?
Prevent access to intermediate host, treat infected dogs
What is hydrated disease?
Disease caused by ingestion of tapeworm eggs
What causes hydrated disease?
Echinococcus granulosus
What is a symptom of hydrated disease in humans?
Looks like a slow growing tumor
What are symptoms of hydrated disease in animals?
Sub clinical
What is the incubation period for hydathodes disease?
Months to years
What is the mortality rate of hydatid diseases?
50-75%
Where does hydatid disease occur?
Rural areas of notthern hemisphere and sheep raising areas of the SW and U.S.
How is hydatid disease diagnosed?
Fecal float and recovery of tape worm after administration of taeniafuge
How is hydatid disease treated?
Antiparasitics and surgical resection of cyst
How is hydatid disease controlled? 4
Regular deworming
Prevent dogs from eating visceral of intermediate hosts
Wash food
Practice good hygiene
What is taeniasis?
Tapeworm infection acquired from eating infected beef or pork
What are two causative organisms of taeniasis?
Taenia saginata and taenia solium
What are human symptoms of taeniasis? 5
Perianal irritation, weightloss, abdominal pain, GI disturbances, cysticerocosis
What are animal symptoms of taeniasis?
Sub clinical
What is the prepatent period of taenia saginata?
8-10weeks
What is the prepatent period of taenia solium?
2 months
What is the incubation period for taeniasis?
8-14 weeksq
What is the mortality rate of taeniasis?
None, cysticerocosis without treatment
Where does taeniasis mostly occur?
Places where beef or pork is eaten raw or undercooked
Places where pigs and cattle are permitted access to human feces
How is taeniasis transmitted?
Ingestion of cysticerci in raw or undercooked beef or pork
Ingestion of taenia soli leading to cystercerosis in humans
How is taeniasis treated? 2
Anti parasitic a, surgical trsection
How is taeniasis diagnosed?
Prig lorries in stool, fecal float, serology
How is taeniasis prevented? 4
Prevent contamination of human feces
Cool meat or freeze for at least four days
Personal hygiene
Don’t fertilize with human waste
What is diphyllobothriasis?
Tapeworm infection acquired by eating raw fish
What causes diphyllobothriasis?
Diphyllobothrium
What are 7 symptoms of diphyllobothriasis?
Diarrhea, vomiting, anorexia, nausea, weightloss, craving for salt, anemia, intestinal obstruction
What is the prepatent period for Diphyllobothrium?
3-4 weeks
What is the incubation period for diphyllobothriasis?
3-6 weeks
Where does diphyllobothriasis occur?
Common in places were people ingest raw fish
How is diphyllobothriasis transmitted?
Eating raw or undercooked fish
How do you diagnosed diphyllobothriasis?
Pro glottis in still, fecal float, CBC
How is diphyllobothriasis treated?
Antoparasitics
How can you prevent and control diphyllobothriasis?
Cool or freeze
Prevent fecal contamination of water
