Small Animal Trematodes

Question 1

The Nanophyetus Salmincola (a GI Fluke/trematode) is not pathogenic in and of itself. It poisons salmon as a vector of what pathogen?

Answer 1

Neoricettsia helminthoeca (Rickettsial infection)

Question 2

Definitive host of Nanophyetus salmincola

Answer 2

Canine or other carnivores

Question 3

Intermediate Hosts of Nanophyetus salmincola

Answer 3

Fresh water snail and salmon

Question 4

Salmon poisoning fluke (Trematode)

Answer 4

Nanophyetus salmincola

Question 5

Larval stages of Nanophyetus salmincola and Paragonimus kellicotti
(They have the same larval stages)

Answer 5

Miracidium
Cercaria
Metacercaria

Question 6

Platynosomum fastosum

Answer 6

Lizard poisoning fluke (GI Trematode)

Question 7

Platynosomum fastosum Host

Answer 7

Feline (biliary ducts)

Question 8

Paragonimus kellicotti

Answer 8

Lung Fluke (Trematode)

Question 9

Paragonimus kellicotti Host

Answer 9

Canine/Feline (pulmonary parenchyma)

Question 10

Paragonimus kellicotti diagnosis (4)

Answer 10

Fecal Flotation
Fecal Sedmentation
Transtracheal wash
Radiography

Question 11

Paragonimus kellicotti Pathology

Answer 11

Pulmonary Damage (cystic nodules)

Question 12

Paragonimus kellicotti Intermediate Hosts

Answer 12

1. Operculated Snail
2. Crustaceans (Crayfish)

Question 13

Definitive Host of Heterobilharzia americana (Schistomsomes)

Answer 13

Canine (Raccoons natural)

Question 14

Definitive Host of Trichobilharzia spp. (Avian Schistosomes)

Answer 14

Aquatic birds

Question 15

What is a Schistosome?

Answer 15

A Circulatory Fluke (Blood Fluke)