Clinical Signs

Question 1

Rabies clinical signs

Answer 1

fatal encephalitis
horses can colic, death
ruminants can colic, strain, bloat and death

Question 2

Vesicular Stomatitis Virus clinical signs
indistinguishable from ____
horses predisposition
swine predisposition

Answer 2

lesions indistinguishable from FMDV
vesicles/ulcers on tongue/oral, teats, corony band
horses - tongue, ears
swine - snout/coronary bands

Question 3

Rift Valley Fever Virus

mortality is the highest in?

Answer 3

bloody diarrhea, jaundice, nasal discharge/crusts
high rates of neonatal abortion –
mortality especially in lambs > sheep > calves/cows

Question 4

diseases causing arthrogryposis and hydraencephaly in neontal calves, sheep and goats

Answer 4

Akabane Virus
Cache Valley Fever Virus
Schmallenberg Virus

Question 5

at what point in gestation do sheep/goats have to be infected with Cache Valley Fever Virus to have fetal defects

Answer 5

28-48 days of gestation

Question 6

Hantavirus clinical signs

Answer 6

hemorrhagic fever with renal syndrome
hantavirus pulmonary syndrome

Question 7

Lymphocytic Choriomeningitis Virus clinical signs

Answer 7

rodents - asymp, immune pathogenesis (glomerulonephritis)
humans - flu-like, aseptic meningitis, congenital defects, fetal death/abortion

Question 8

Avian Influenza (A) clinical signs

Answer 8

HPAI “Fowl Plague” - generalized; sporadic outbreaks
- hemorrhage of head, wattles, legs, CNS, resp
LPAI - GI, resp, repro; worldwide

Question 9

Influenza B virus clinical signs

Answer 9

moderately severe resp dz

Question 10

Influenza C virus clinical signs

Answer 10

least severe resp dz

Question 11

Canine Influenza clinical signs

Answer 11

Kennel Cough

Question 12

Canine Distemper Virus

Answer 12

“old dog” encephalitis
“chewing gum fits”
“hard pad” disease
enamel hyoplasia in dogs < 6 mo
immunosuppression
lameness

Question 13

Phocine Morbillivirus clincial signs

Answer 13

Phocine Distemper - encephalitis, fever, lymphoid depletion, pneumonia

Question 14

Rinderpest clinical signs

Answer 14

Cattle Plague - fever, oral ulcers, diarrhea, immunosuppression

Question 15

Avian Paramyxovirus-1 clinical signs

Answer 15

Newcastle Disease

Question 16

viral components of Bovine Respiratory Disease Complex/Shipping Fever

Answer 16

Bovine Herpesvirus 1
Bovine Respiratory Syncytial Virus
Bovine Parainfluenza Virus 3
Bovine Viral Diarrhea Virus
Bovine Respiratory Coronavirus

Question 17

Avian Rhinotracheitis Virus clinical signs

Answer 17

Turkey Rhinotracheitis
Swollen Head Syndrome in chickens

Question 18

Bornavirus clinical signs

Answer 18

encephalomyelitis
prodromal phase - fever, colic, fatigue, icterus
neuro phase - encephalitis, paralysis, neuro deficits

Question 19

what virus causes Proventricular Dilation Disease/Macaw Wasting Syndrome

Answer 19

Avian Bornavirus

Question 20

Foot and Mouth Disease Virus clinical signs

Answer 20

vesicular disease
vesicles/ulcers of oral cavity, profuse drooling, lip-smacking

Question 21

Swine Vesicular Disease Virus clinical signs

Answer 21

vesicular disease with fever
vesicles/ulcers on coronary band, lip, snout, tongue
encephalomyelitis

similar to human coxsachievirus B5 (human FMD)

Question 22

abortion/diabetes in alpacas and llamas

Answer 22

Equine Rhinitis A Virus

Question 23

Avian Encephalomyelitis Virus clinical signs

Answer 23

epidemic tremors, paralysis in young
inapparent in adults
chicks have clinical signs day 1 of age

Question 24

Feline Calcivirus clinical signs

Answer 24

FCV - arthritis, ulcerative glossitis, URDC
Virulent FCV - hemorrhage, edema

Question 25

Vesicular Exanthema of Swine Virus clinical signs

Answer 25

vesicles on oral, snout, tongue, coronary bands, interdigital cleft

Question 26

Rabbit Hemorrhagic Disease Virus clinical signs

Answer 26

does not infect rabbits < 2 mo hemorrhage from nasal passages lung and liver necrosis

Question 27

West Nile Virus clinical signs

Answer 27

non-suppurative encephalomyelitis

Question 28

Japanese Encephalitis Virus clinical signs

Answer 28

encephalomyelitis

Question 29

Yellow Fever Virus clinical signs

Answer 29

acute viral hemorrhagic disease

Question 30

leading cause of arbovirus encephalitis in horses/humans in the US

Answer 30

West Nile Virus

Question 31

Bovine Viral Diarrhea Virus clinical signs

Answer 31

1. acute infection of IC cattle = BRDC, hemorrhagic syndrome 2. fetal infection of IC pregnant cattle = cerebellar hypoplasia, seropositive calves, PI calves 3. mucosal infection of IT cattle = 100% fatal

Question 32

when during gestation does an immunocompetent pregnant cow have to be infected with a non-cytopathic biotype of BVDV

Answer 32

80-125 days (2-4 months)

Question 33

Classical Swine Fever Virus clinical sign indistinguishable from _____

Answer 33

hemorrhagic disease indistinguishable from African Swine Fever Virus "hog cholera" neuro, resp, repro dz cyanosis, splenic infarcts, button ulcers on colon, turkey egg kidney

Question 34

what virus causes "hog cholera"

Answer 34

Classical Swine Fever Virus

Question 35

what virus causes "hairy shaker" or "fuzzy lambs"

Answer 35

Border Disease Virus

Question 36

when during gestation does a ewe need to be infected with Border's Disease Virus to result in a PI lamb

Answer 36

before 60 days (IC inutero occurs 60-85 days)

Question 37

Equine Arteritis Virus clinical signs

Answer 37

dependent edema in hind limbs, scrotum, mammary glands, prepuce, ventrum & periorbital/supraorbital edema

Question 38

how many days post-infection with EAV can a horse have an abortion? what happens if infected during late gestation?

Answer 38

10-30 dpi congenital infected foal

Question 39

Porcine Reproduction and Respiratory Virus clinical signs

Answer 39

most costly disease of swine **"blue ear disease"** resp infection in nursers/growers-finishers "thumping" repro infection in pregnant gilts/sows

Question 40

Eastern Equine Encephalitis Virus fatality in horses vs humans

Answer 40

encephalitis "sleeping sickness" fatality in horses 50-90% fatality in humans 50-75%

Question 41

Western Equine Encephalitis Virus fatality in horses vs humans

Answer 41

non-suppurative encephalitis fatality in horses 20-40% fatality in humans low

Question 42

Venezuelan Equine Encephalitis Virus fatality in horses vs humans

Answer 42

fatality in horses 50-80% fatality in humans low

Question 43

Transmissible Gastroenteritis Virus (TGEV) clinical signs

Answer 43

transmissible gastroenteritis, severe diarrhea

Question 44

Porcine Respiratory Coronavirus (PRCV) clinical signs

Answer 44

resp infection

Question 45

Porcine Hemagglutinating Encephalomyelitis Virus (PHEV) clinical signs

Answer 45

acute vomiting, wasting and encephalomyelitis

Question 46

Porcine Epidemic Diarrhea Virus (PEDV) clinical signs and mortality

Answer 46

diarrhea 50-80% mortality

Question 47

Bovine Coronavirus clinical signs

Answer 47

bovine coronavirus enteritis - malabsorptive diarrhea

Question 48

Winter Dysentery clinical signs

Answer 48

sporadic, bloody diarrhea of adults

Question 49

Bovine Respiratory Coronavirus clinical signs

Answer 49

summer pneumonia BRDC

Question 50

Infectious Bronchitis Virus (Gamma Coronavirus) clinical signs

Answer 50

acute respiratory disease, nephritis

Question 51

Feline Infectious Peritonitis Virus clinical signs

Answer 51

**FIP - sporadic, fatal** dry form - fever, wasting, renal dx, icterus, neuro signs, granulomas, vasculitis wet form - ascites, pleural effusion, fever, anemia, weight loss