Pseudophyllidan Tapeworms

Question 1

Pseudophyllidan cestodes

Answer 1

segmented tapeworms w/ specialized holdfast
-slit like suckers bothria
aquatic lifecycle w/ 2 intermediate hosts

Question 2

diphyllobothrium latum

Answer 2

aquatic, 2 host Lifecyle
copepod 1st IH, fish 2nd IH
endothermic vertebrae DH?
Zoonotic to humans
associated w B12 iron deficiency anemia
distinctive gold-brown eggs w/ operculum
large tapeworm
DX: eggs/ proglottids in stool

Question 3

human outbreaks with diphyllobothrium latum associated with

Answer 3

increase popularity of fresh salmon, raw and pickled fish

Question 4

human outbreaks adenocephalus pacificus associated w

Answer 4

countries w significant imports of marine fish
consumption of chilled raw and undercooked fish

Question 5

spirometra mansonoides

Answer 5

pseudophyllidian tapeworm w/ aquatic lifecycle and 2 IH
larval stage multiplies asexually in 2nd IH
canine/feline DH
infected humans serve as a 2nd IH
gold brown eggs w ooperculum