Quiz 5

Question 1

Caliciviridae and Astroviridae are E or NE?

Answer 1

NE

Question 2

Togaviridae and Flaviviridae are E or NE?

Answer 2

E

Question 3

This calicivirus causes vesicles to appear on the tongue, lips, snout, and toes of pigs. It has been eradicated from the US and is associated with high morbidity and low mortality

Answer 3

Vesicular exanthema of swine

Question 4

This calicivirus can infect sea lions and cause vesicles to appear on their flippers. It is believed that this virus caused the outbreak of Vesicular exanthema of swine in 1972.

Answer 4

San Miguel sea lion virus

Question 5

This virus is associated with upper respiratory disease and vesicle formation on the tongues of cats; on rare occasions, the virus can mutate and lead to systemic disease

Answer 5

Feline calicivirus (FCV)

Question 6

Name for the disease caused by FCV that leads to multi-organ involvement, cutaneous edema, and fever

Answer 6

Virulent systemic disease

Question 7

This highly contagious virus causes severe hepatic necrosis and death in rabbits; rabbits less than 2 months of age appear to be resistant to infection

Answer 7

Rabbit hemorrhagic disease

Question 8

The viral family Picornaviridae is E or NE?

Answer 8

NE

Question 9

This Picornavirus causes a mild disease in pigs that presents with febrile illness and vesicular lesions on the feet and coronary bands; it has zoonotic potential and can cause flu-like symptoms in people

Answer 9

Swine vesicular disease

Question 10

This Picornavirus, not found in the US, can lead to weakness and incoordination that progresses to paralysis; affected pigs may adopt a “dog sitting” posture

Answer 10

Porcine Teschovirus (PTV)

Teschen disease

Question 11

What does SMEDI stand for?

Answer 11

stillbirths, mummificiation, embryonic death, and infertility

Question 12

This virus is responsible for SMEDI in swine and can be difficult to distinguish from porcine parvovirus on clinical presentation alone

Answer 12

Porcine enteroviruses (pirconaviruses)

Question 13

This viral disease of young birds causes fine tremors of the head and neck which progresses to paralysis

Answer 13

Avian encephalomyelitis

Question 14

This contagious disease of even-toed ungulates is characterized by fever and the formation of vesicles on epithelial surfaces. Which host is most susceptible?

Answer 14

Foot and Mouth Disease

Cattle are most susceptible

Question 15

Though rodents are the primary reservoir, this virus can infect a wide range of hosts and has been described as causing sudden death in piglets and reproductive failure in sows

Answer 15

Encephalomyocarditis virus

Question 16

_________________ is a togavirus that is zoonotic and is associated with a variable case fatality rate of up to 80% in infected horses that demonstrate neurologic signs. The horse does serve as an amplifying host for this virus which is transmitted by mosquitos.

Answer 16

Venezuelan equine encephalitis virus (VEEV)

Question 17

A togavirus that is zoonotic and is associated with a case fatality rate of 50 to 90% in infected horses. The horse does not serve as an amplifying host for this virus which is transmitted by mosquitos.

Answer 17

Eastern equine encephalitis

Question 18

This zoonotic virus is transmitted by ticks and causes an abnormal gait in infected animals and flu-like symptoms in people

Answer 18

Louping ill

Question 19

Important amplifying host of Japense encephalitis

Answer 19

Pigs

Question 20

This flavivirus is transmitted by mosquitoes and can cause neurological signs in affected horses and humans

Answer 20

West nile virus (WNV)

Question 21

This highly contagious, potentially fatal disease of pigs has been eradicated from the US; it can cause ocular discharge, reproductive losses, and neurologic tremors in piglets

Answer 21

Hog Cholera (classical swine fever)

Question 22

In utero infection with this virus, also called hairy shaker lamb disease, can lead to lambs that are born with tremors and abnormal hair coats

Answer 22

Border disease

Question 23

_______ _______ animals are the critical link for continued viral transmission of BVDV. Name 2 ways to prevent spread

Answer 23

Persistently infected

1) biocontainment
2) Biosecurity

Question 24

Infection after ____ days of gestation does not result in a persistently infected offspring

Answer 24

150 days

Question 25

Calves born with congenital defects from BVDV (are or are not) persistently infected with the virus

Answer 25

are NOT

Question 26

A persistently infected animal that has the noncytopathic strain can develop ________ ______ if they become “superinfected” with a cytopathic strain of BVDV

Answer 26

mucosal disease

Question 27

The abnormal protein involved in the transmissible spongiform encephalopathies (TSEs)

Answer 27

PrPsc

mutated from PrPc