14 - Trematodes: rumen, lung, intestinal

Question 1

1-2. What are the two genera of importance?

Answer 1

1. Paramphistomum spp. (cattle, moose, deer)
2. Cotyophoran spp. (sheep and goats)

Question 2

(Rumen flukes)

1. color
2. where found in body?

Answer 2

Question 3

just to go over the fluke anatomy again

as fluke matures the uterus becomes filled with eggs - and passes them out one at a time through the genital pore

1. more common in cervids or cattle/sheep?

Answer 3

1.

Question 4

(Rumen Flukes)

(Life Cycle)

1. similar to what?

Answer 4

Question 5

(Rumen Flukes)

(Pathology)

1. what causes most damage?
2. how do they get throgh rumen?
3. how much damage to adults cause?

Answer 5

1. migration of juvenile adults
2. small intestine throught the abomasum
3. none usually

Question 6

(Rumen Flukes)

(eggs)

1. do they float?
2. what is different about them (in comparison to other fluke eggs)?

Answer 6

1. no
2. their are clear rather than reddish

Question 7

(Lung Flukes)

1-2 what are the two species of importance?

Answer 7

Question 8

(Paragonimus Kellitcotti)

(Hosts)

1. definitive?
2. intermediate?

Answer 8

Question 9

(Lung Flukes)

(Paragonimus Kellicotti)

1. location?
2. in what?
3. how many?

Answer 9

Question 10

1. local distribution limited by what?

Answer 10

1. IH availability

Question 11

Question 12

(Lung Flukes)

(Paragonimus Kellicotti)

1-2. What is unique about the eggs?

Answer 12

1. prominent operculum (shoulders)
2. button/knob at end opposite the operculum

Question 13

(Lung Flukes)

(Paragonimus Kellicotti)

Answer 13

Question 14

(Lung Flukes)

(Paragonimus Kellicotti)

1. clincal signs/pathogensis?
2. what may experience chronic disease?

Answer 14

1. often none
2. cats/dogs

Question 15

most worms induce eosinophilia

eosinophilia = allergies and parasites

Answer 15

Question 16

Question 17

(Paragonimus Westermani)

1. infects what?

Answer 17

1. humans

Question 18

(Intestinal Flukes)

Nanophyetus Salmonicola

1. definitive hosts?
2. intermediate

Answer 18

1. look at pic
2. 1st is snail

2nd is salmonids (also giant salamander)

Question 19

Answer 19

Question 20

Answer 20

Question 21

(nanophyetus salmonicola)

(Pathogenecitiy)

1. adult flukes in dogs penetrate deeply into mucosa
2. see clinical problems?

Answer 21

2. not usually

Question 22

(nanophyetus salmonicola)

(salmon poisoning disease)

1. Rickettsial disease caused by what?
2. high mortality in what?

Answer 22

fluke is serving as vector for rickettsia

Question 23

(Salmon Poisoning Disease)

Answer 23

Question 24

(nanophyetus salmonicola)

(Neorickettsia elokominica)

1. cause what?
2. how relative to rickettsia?
3. how compared to SPD?

Answer 24

Question 25

(nanophyetus salmonicola) 1. What is caused by Neorickettsia Risticii?

Answer 25

1. potomac horse fever

Question 26

(Alaria spp.) 1. Definitive hosts? 2. regionally most common fluke encuountered in what? 3. pathogenic?

Answer 26

Question 27

(Alaria spp.) 1. intermeditate host(s)? 2. DH become infected by eating what? 3. Juvenile flukes may migrate extensively before maturing where?

Answer 27

1. 1st snails 2nd frogs

Question 28

(Alaria spp.) 1. how pathogenic?

Answer 28

1. not very NO APPROVED TREATMENT