Integrated Vet. Medicine

Question 1

how many legs do larvae have?

Answer 1

6

Question 2

how many legs do nymphs have?

Answer 2

8

Question 3

what is a haller’s organ?

Answer 3

sensory organ in hard and soft ticks - senses humidity, temperature, carbon dioxide, and phermones

Question 4

how do ticks and mites differ?

Answer 4

tick - macroscopic, mostly off host
mite - microscopic, mostly on host

Question 5

what are the 2 main families of the ticks?

Answer 5

Aragasidae (soft)
Ixodidae (hard)

Question 6

which soft tick has one host?

Answer 6

Otobius megini (Spinose ear tick)

Question 7

Which tick type (hard vs soft, and genera) can transmit Cattle fever aka Babesiosis?

Answer 7

Hard tick
Rhypicephalus

Question 8

What was the first described tick borne disease?

Answer 8

Babseiosis

Question 9

Rhipicephalus microplus tick causes ___ brain in cattle with Babesiosis. how?

Answer 9

PINK brain
discolored due to distended blood vessels

Question 10

ID this winter tick

Answer 10

Dermacentor albipictus

Question 11

list the important Argasidae Genera

Answer 11

Argas
Ornithodoros
Otobius

Question 12

list the important Ixodidae Genera

Answer 12

Ixodes
Amblyomma
Dermacentor
Rhipicephalus

Question 13

What’s the main vector of Ornithodoros spp

Answer 13

Epizootic bovine abortion aka Foothill abortion

Question 14

ID. Is it hard or soft?

Answer 14

Ornithodoros spp
Soft

Question 15

Where is Epizootic bovine abortion aka Foothill abortion common?

Answer 15

coastal, central CA, Nevada, OR

Question 16

list examples of direct tick borne disease

Answer 16

irritation-tick worry
anemia
secondary infection
TOXICOSIS aka tick paralysis

Question 17

list example of indirect diseases

Answer 17

pathogen transmission
- bacteria, protozoa, viruses

Question 18

What are the two types of transmission of indirect disease?

Answer 18

transstadial (>1 host)
transovarian (1 host)

Question 19

What was this dog ill with?

Answer 19

Rocky Mountain Spotted Fever (RMSF) aka Rickettsia rickettsii

Question 20

Which tick types can cause RMSF?

Answer 20

Dermacentor
Rhipicephalus (IN AZ)

Question 21

What’s the significance of Rhipicephalus sanguineus in AZ?

Answer 21

most common tick in AZ
MAJOR RMSF vector in AZ

Question 22

What’s a vector for Bovine Anaplasmosis?

Answer 22

Dermacentor andersoni

Question 23

where is Dermacentor andersoni found?

Answer 23

western US

Question 24

Clinical signs of bovine anaplasmosis?

Answer 24

hemolytic anemia, fever, depression, anorexia

Question 25

What's the vector for American Canine Hepatozoonosis (Hepatozoon americanum)?

Answer 25

Amblyomma maculatum (gulf coast tick)

Question 26

where is Hepatozoon americanum mainly occurring?

Answer 26

south and central america and southeast US

Question 27

How is Hepatozoon americanum transmitted?

Answer 27

ingestion of infected tick or paratenic host ingests tick

Question 28

what are the two vectors of Cytauxzoonosis (Cytauxzoon felis)?

Answer 28

Amblyomma americanum and Dermacentor variabilis

Question 29

where does Cytauxzoonosis (Cytauxzoon felis) mainly occur?

Answer 29

SE, S-central, and mid-atlantic states

Question 30

what is tick paralysis? what's it caused by?

Answer 30

neurologic syndrome acute ataxia progression to ascending paralysis caused by salivary neurotoxin

Question 31

What 4 ticks cause tick paralysis in North America?$

Answer 31

Question 32

What flies are within the Nematocera category?

Answer 32

mosquito midges blackflies sandflies

Question 33

what flies are within Brachycera group?

Answer 33

myiasis causing (bot, blow, flesh) stable flies hornflies keds horse and deer flies

Question 34

List the main Genera of botflies

Answer 34

Oestrus Hypoderma Cuterebra Gasterophilus

Question 35

how can you differentiate between botflies?

Answer 35

observing the shape of the bot spiracles

Question 36

ID these two botflies by their spiracle shape

Answer 36

Question 37

ID these two botflies by their spiracle shape

Answer 37

Question 38

Oestrus ovis affects what part of the sheep body?

Answer 38

face, causes neurologic signs

Question 39

Deceased cat presents with asymmetry of the brain, after presenting a few months ago with a suspected globe rupture. What's the likely cause and condition?

Answer 39

Cuterebra larval migration Condition - feline ischemic encephalopathy

Question 40

what are the 3 main vectors of heartworm?

Answer 40

Anapheles spp Aedes spp Culex spp

Question 41

List the following facts regarding canine heartworm... Susceptibility Adult worm lifespan Single sex infections (yes/no) Microfilaremia (yes/no, lifespan) Primary organ

Answer 41

Susceptibility - HIGH Adult worm lifespan - 5-7 years Single sex infections - NO Microfilaremia - Common, lives 1-2 years Primary organ - Heart

Question 42

List the following facts regarding feline heartworm... Susceptibility Adult worm lifespan Single sex infections (yes/no) Microfilaremia (yes/no, lifespan) Primary organ

Answer 42

Susceptibility - LOW Adult worm lifespan - 2-4 years Single sex infections - YES Microfilaremia - Not Common, live 1 month Primary organ - Lungs

Question 43

Which flea species is most common with a wide host range?

Answer 43

Ctenocephalides felis

Question 44

6mo pug presents with alopecia, erythema, erosion, ulcers, and crusts. What is the likely cause?

Answer 44

Demodex canis DDX - allergic dermatitis

Question 45

Red fox has strong immediate hypersensitivity, severe pruritis developed. What's likely cause?

Answer 45

Sarcoptes scabiei