Parasites: Nematodes_Trichuroidea (whipworms)

Question 1

ova

Answer 1

football/lemon-shape

bipolar plugs

Question 2

canine whipworm

Answer 2

Trichuris vulpis *
site: large intestine
route: fecal-oral
symptoms: hematochezia
PPP: 74-90 days
Tx: Fenbantel
Dx: fecal float

Question 3

sheep (cattle/goat/ruminant) whipworm

Answer 3

Trichuris ovis

site: cecum/colon
zoonotic: fecal-oral
route: ingestion of egg

Question 4

pig whipworm

Answer 4

Trichurs suis

site: cecum/colon
zoonotic: fecal-oral
route: ingestion of ova

Question 5

pig whipworm 2

Answer 5

Trichinella spiralis
site: striated muscle epithelial cells=larvae, small intestine(adult)
route: ingestion of raw undercooked meat
Dx: skeletal muscle biopsy
zoonosis: trichinosis-v/d facial edema, fever

Question 6

dog bladderworm

Answer 6

Pearsonema plica
route: ingestion of paratenic host
site: urinary bladder/mucosa
Dx: urinalysis

Question 7

bladderworm of cat

Answer 7

Pearsonema feliscati
route: ingestion of paratenic host
site: urinary bladder/mucosa
Dx: urinalysis

Question 8

feline whipworms

Answer 8

Trichuris campanula and Trichuris serrata

extremely rare in US
probably Pearsonema feliscati misdiagnosis