tapeworms Flashcards
what is another term for tapeworms?
cestodes
where are cestode eggs passed?
in the feces of definitive host
what is the infective stage of the cestodes?
metacestode
-larval stage infective and ingested by definitive host
-may cause damage
adult tapeworm that primarily infect dogs and wild canids (esp farm dogs)
taenia hydatigena
tape worm that intermediate host of domestic and wild ruminants and swine
taenia hydatigena
what is the predilection site of Tania hydatigena
immature larve migrante to the liver, tunnels through parenchyma to abdominal cavity, encysts as metacestode on peritoneal membranes
Tx for taenia hydatigena
prazi for dogs and sheep
adult worms that primarily infect cats and wild felids
taenia taeniaformis
Dx for taenia hydatigena
ultrasound
taenia taeniaeformis intermediate host
rodent and rabbits (rarely)
-develops metacestodes in liver
can cause intestinal impaction
taenia taeniaeformis
adult worms primarily infect dogs and wild canids (most common US dog)
taenia pisiformis
intermediate host: rabbits and hares
taenia pisiformis
adult worms infect dogs and wild canids and has the highest incidents in sheep-raised areas of western states
echinococcus granulosus
intermediate hosts: domestic and wild ruminants, pigs, camelids, kangaroos and wallabies
echinococcus granulosus
metacestode (hydatid cyst) in liver (primarily) and lungs
echinococcus granulosus
zoonotic hydatid disease that is important sheep-raising regions of the world
echinococcus granulosus
adult worms that infect SI of dogs, cats, wild canids and felids
dipylidium caninum
what is the intermediate host of dipylidium caninum
fleas and chewing lice
adult worms in the SI of sheep (primarily), goats, cattle, other ruminants
moniezia expansa
adult worms in SI of cattle (primarily), sheep, goats, other ruminants
moniezia benedeni
treatment for moniezia species
fenbendazole
albendazole
oxfendazole
adult worms in bile and pancreatic ducts, duodenum of sheep (primarily), goats, cattle, other ruminants
thysanosoma actinioides
adult worms in SI in equids
anaplocephala magna
adult worms in the cecum and distal ileum in equids
anaplocephala perfoliata
what tapeworm is associated with colic
anaplocephala perfoliata
adult worms in SI of piscivorous mammals (mainly northern hemisphere)- associated with freshwater lakes, rivers, and streams
primary impact: dogs and cats
dibothriocephalus latus
life cycle of dibothriocephalus latus (all hosts)
first intermediate host: copepod crustacean
second intermediate host: small fish
paratenic host: predatory fish
adult worms in SI of cats and wild felids, canids, other carnivores
primary impact: cats and dogs
spirametra mansonoides
what stage of spirometra mansonoides zoonotic
metacestode stage
life cycle of spirometra mansonoides (all hosts)
first intermediate host: copepod crustacean
second intermediate host: non-fish vertebrae
paratenic host: predator of 2nd intermediate host
