Parasites

Question 1

The most common swine gastrointestinal parasite

Answer 1

Ascaris suum (roundworm)

Question 2

The parasite that is the most important cause of parasitic gastritis in cattle

Answer 2

Ostertagia orstertagi (brown stomach worm)

Question 3

Equine gastrointestinal parasite that when deposited at an abnormal site on the skin or mucous membranes is responsible for causing the eosinophilic granulomas known as summer sores

Answer 3

Habronema spp.

Question 4

A proliferative honeycomb beak along with scaly crusty lesions on the legs and feet of a bird is a sign of

Answer 4

Cnemidocoptes pilae (scaly leg mite)

Question 5

The intermediate host of Dipylidium caninum and is important in its transmission

Answer 5

Ctenocephalides felis (cat flea)

Question 6

Parasite that is responsible for the transmission of Yersinia pestis

Answer 6

Xenopsylla cheops (plague/rat flea)

Question 7

Eimeria, Cystoisospora, Cryptosporidium, Sarcocystis, and Toxoplasma are all what type of parasite?

Answer 7

Coccidia

Question 8

The parasite that can be found in the bladder or urinary tract of dogs

Answer 8

Capillaria plica (bladder worm)

Question 9

What two blood parasites look similar on a blood slide but must be differentiated to treat

Answer 9

Dirofilaria immitis (heartworm) and Acanthocheilonema (Dipetalonema) reconditum

Question 10

The two groups of Endoparasites

Answer 10

Protozoa and Helminths (worms)

Question 11

Flies, ticks, fleas, lice, and mites are classified as

Answer 11

Ectoparasites

Question 12

The two types of lice

Answer 12

Anoplura (sucking) and Mallophaga (chewing)

Question 13

Mites are identified by

Answer 13

Shape/body type and pedicles

Question 14

Cochliomyia hominivorax

Answer 14

primary screwworm; infects cattle skin; need to report infestation; Myiasis producer

Question 15

Cuterebra

Answer 15

rodent fly; infects skin of any mammal; Obligate myiasis producer

Question 16

Gasterophilus

Answer 16

bot fly; infects mouth, pharynx, and esophagus of horses; eggs are laid on the hair of forelimbs; Obligate myiasis producer

Question 17

Hypoderma

Answer 17

warbles; lays eggs in superficial skin of cattle; migrates through tissues to get to SQ tissue; Obligate myiasis producer

Question 18

Musca domesticus

Answer 18

house fly; Facultative myiasis producer; lays eggs in breaks in skin; carries vectors such as Habronema, Thelazia, Morazella bovis

Question 19

Stomoxys

Answer 19

stable fly; Facultative myiasis producer; lays eggs in feces near stagnant water; female carrier; Habronema in cattle

Question 20

Chrysops/Tabanus

Answer 20

horse fly; Facultative myiasis producer; lays eggs in feces; female carrier; Anaplasma (cattle), anthrax, tularemia, Equine Infectious anemia (EIA), and Trypanosoma

Question 21

Culex Anopheles

Answer 21

Mosquito; causes hypersensitivity, anemia, agitation; Equine Enchephalitis, West Nile, myxomatosis (rabbits), Fowl pox, Dirofilaria immitis definitive host for Plasmodium(malaria)

Question 22

Parasite that causes pruritic of ears, coffeeground discharge in ears, and can cause military dermatitis of face and neck in cats

Answer 22

Otodectes cynotis (ear mite)

Question 23

Birds are the preferred host but will feed on any warm blooded host

Answer 23

Echidnophaga (sticktight flea)

Question 24

Demodex canis

Answer 24

Mange; causes alopecia but is usually self limiting

Question 25

Ixodes scapularis

Answer 25

White-tailed deer tick; intermediate host is white-footed mouse; vector of Borrella burgdorferi (lyme), Babesia (cattle), Anaplasma phagocytophilum (horses)

Question 26

Rhipicephalus sanguineus

Answer 26

Brown dog tick; vector of Babesia canis, Ehrlichia canis, Babesia bigemina (cattle)

Question 27

Dermacentor variabilis

Answer 27

American dog tick; vector of Rocky Mountain spotted fever, Francisella tularensis (tularemia)

Question 28

Dermacentor andersoni

Answer 28

Rocky Mountain Wood tick; vector of Rocky Mountain spotted fever, Francisella tularensis (tularemia), Colorado tick fever, Q fever

Question 29

Parasite that causes a mild fever for 3-4 days or be asymptomatic in its definitive host (cat) but causes flu-like symptoms in its intermediate host

Answer 29

Toxoplasma gondii

Question 30

Parasite that's life cycle takes place in the intestines and most commonly affects cattle causing symptoms such as severe diarrhea, kidney, and/or liver damage

Answer 30

Cryptosporidium

Question 31

How dogs contract Hepatozoon canis/americanum

Answer 31

Ingestion of the Rhipicephalus tick

Question 32

Diplydium caninum, Taenia pisiformis, and Echinococcus granulosus are what type of parasite?

Answer 32

Cestodes (Tape worms)

Question 33

Fasciola hepatica and Paragonimus kellicotti are parasites that are classified as

Answer 33

Trematodes (Flukes) | Snails are usually first host

Question 34

Nematodes include which parasites

Answer 34

Hookworms, roundworms, stronglys