Block 8- Herpesviridae, Asfarviridae, Parvoviridae + cumulative

Question 1

Canine parvovirus can result in hemorrhagic enteritis, collapse and necrosis of intestinal villi & ballooning of the si

Accepted Answer

True

Question 2

clinical features of Mareks dz are due to the infiltration and proliferation of neoplastic t cells. Manifestation?

Accepted Answer

all of the above

Question 3

What will occur if a sow is infected with PPV 30-70 days of pregnancy?

Accepted Answer

fetuses die and become dehydrated

Question 4

Chicken infectious anemia is part of family gyrovirus, Genus Anneloviridae

Accepted Answer

False

Question 5

Dr. Toka invited you to help with research on betaherpesvirinae. What do you learn about the subfamily?

Accepted Answer

latent form maintained in the secretory glands and lymphoreticular cells, associated with chronic infection

Question 6

Whar is true?

Accepted Answer

You must cull all pigs ASF exposed pigs, pigs should not be fed swill that might contain remains of pigs

Question 7

You go to parvo trivia night at Shiggity with Dr. Ghosh. What are some parvo facts you keep in your arsenal?

Accepted Answer

Feline parvovirus is highly contagious and often fatal.Severe in kittens :(, paarvovirus replication =actively dividing cells. Need mitotic enzymes, porcine parvovirus is linked to reproductive failure

Question 8

Porcine herpesvirus 2 results in the development of inclusion body rhinitis what are the primary sites of replication?

Accepted Answer

epithelial cells of the URT, nasal mucous glands

Question 9

Both OvHV-2 and AHV-1 are seen worldwide

Accepted Answer

False

Question 10

What are the most common antigenic varients of CPV-2 in north america ?

Accepted Answer

CPV2-c, CPV2-b

Question 11

What are some methods of infectious laryngotracheitis transmission

Accepted Answer

inhalation, mechanical: vultures, crows, dogs that feed on improperly disposed birds, fomites

Question 12

CPV-1 is the most important and most common infectious disease of dogs

Accepted Answer

False

Question 13

who will have mostly inapparent- subclinical infections upon infxn with ppv?

Accepted Answer

gilts, boars, sows

Question 14

Due to macrophage associated viremia of Mareks disease: the virus can be detectable in the:

Accepted Answer

bursa of fabricius, spleen, thymus

Question 15

What is common due to ppv infection

Accepted Answer

fetal death at different stages of pregnancy

Question 16

Select the true statements regarding feline panleukopenia

Accepted Answer

cats vaccinated during pregnancy may show abortion of dead/mummified babies, upon hematology, leukopenia & neutropenia =more consistant than lymphopenia, retinal degeneration can be seen in infected kittens

Question 17

Pathogenesis of MD: Intiail replication in (1)____, (2)_____ associated viremia.

Accepted Answer

(2) macrophage, (1)epithelial cells

Question 18

When vaccinating against infectious laryngotracheitis, the least likely vaccine to revert back to virulence (safest) =

Accepted Answer

tissue culture origin vaccine

Question 19

Which of the following does not have abortion as a clinical sign?

Accepted Answer

Bovine herpesvirus 2, Ovine herpes virus 2, Alcelaphine herpes virus 1

Question 20

Chickens with ILT may exhibit "pump handle respiration" and severe respiratory distress. What else can be seen?

Accepted Answer

tracheal plug, necrotizing hemorrhagic tracheitis, Hemorrhagic tracheitis

Question 21

Serology is the best way to test for CPV

Accepted Answer

False

Question 22

PHV-2: neonate infxn 1.___, infxn in suckling pigs <3wks= 2.___, Transplacental=stillbirth, mummification+neonatal death

Accepted Answer

2: mucopululant rhinitis, 1. bone marrow damage: stunted growth

Question 23

What are all of the ways that MCF can be transmitted

Accepted Answer

wildebeest to wildebeest, wildebeest to cattle, sheep to sheep, sheep to cattle

Question 24

Which is not a manifestation of a pig infected with porcine parvovirus?

Accepted Answer

enteritis

Question 25

What type of inclusion bodies can be found in the Family Herpesviridae? Hint: eosinophilic and intranuclear

Accepted Answer

Type A cowdry bodies

Question 26

CHV 1= subfamily alphaherpesvirinae.No inutero transmission, pups acquire this dz through passage of birth canal

Accepted Answer

False

Question 27

Which of the following diseases does not have evidence of transplacental trasmission?

Accepted Answer

Feline herpes virus 1, African swine fever

Question 28

What isnt a clinical sign caused by CHV-1

Accepted Answer

polynephritis

Question 29

what can be said about AHV-1 transmission?

Accepted Answer

transmitted :close contact with wildebeest during calving (cell-free state), the virus is cell associated in adults = rarely transmitted from adults, Young wildebeest pick up virus from pasture contaminated with secretions, horizantal& intrauterine transmission in wildebeast= inapparent infxn

Question 30

You go to Nevis to perform a necropsy on a cow. You find zebra striping in the colon. What subfamily is responsible

Accepted Answer

gamma herpes virinae

Question 31

Select the true statements regarding the pathogenesis of equine herpes virus 1

Accepted Answer

cell-associated viremia confers protection from the body&#x27;s immune defenses., this disease causes immunosuppression, the principal route of EHV-1 infection is via the respiratory tract

Question 32

older piglet has necrotizing skin lesions, necrotizing vasculitis& necrotizing glomerulonephritis. Best differential ?

Accepted Answer

disease is associated with PCV2

Question 33

Mareks disease is part of which Herpesviridae subfamily?

Accepted Answer

Alphaherpesvirinae

Question 34

porcine parvovirus transmission=via oronasal route in the nonimmune pregnant sow followed by transplacental transmission

Accepted Answer

True

Question 35

Gammaherpesvirinae causes malignant catarrhal fever(highly fatal dz of cattle & wild ruminants).Features of the subfam?

Accepted Answer

some members can cause lymphoid tumors . Latency occurs in lymphoid tissue, lymphotropic (replicates in B or T lymphocytes), slowly cytopathic for epithelial and Fibroblastic cells

Question 36

Soft ticks ( ornithodorus) are the biological vectors of ASF. What are the methods of tick to tick transmission?

Accepted Answer

trans stadial, Male - female, transovarial

Question 37

When it comes to puppies with CHV-1, the more severe the hyperthermia, the more severe the disease

Accepted Answer

False

Question 38

early in-utero parvo infection of a pregnant queen can result in:

Accepted Answer

early fetal death and resorption, abortion, birth of mummified baby

Question 39

Upon doing a pig necropsy, you see an enlarged friable(blackberry jam) spleen. Who is the family most likely responsible

Accepted Answer

Asfarviridae

Question 40

true statements regarding the pathogenesis and clinical signs of ASF

Accepted Answer

leukopenia lymphopenia and thrombocytopenia = result of virual replication, thrombocytopenia can lead to edema, infarction&hemorrhages in many organs, chronic form involves emaciation & stunting+ raised necrotic skin foci

Question 41

What is true regarding chicken infectious anemia virus?

Accepted Answer

Older chickens are more resistant to clinical disease over young chickens, An atrophied bursa of fab can be found upon necropsy, Principal sites of replication: bone marrow, spleen, thymus, CAV has an apoptin protein that induces apoptosis of lymphocytes

Question 42

Concerning treatment and control of feline parvovirus:

Accepted Answer

disinfection:bleach.4% formaldehyde and 1% glutaraldehyde-10 mins room temp, modified live vaccines should not be given to pregnant or immunosuppressed, inactivated vaccine available

Question 43

In mareks disease, the production of naked virions and viral antigens occurs in fully productive infection

Accepted Answer

False

Question 44

Mareks disease is a very important disease of poultry. What animal is the most important natural host?

Accepted Answer

chicken

Question 45

Hit me with some facts regarding MCF

Accepted Answer

Erosions on the tongue can bee seen with the head and eye form, the majority of cattle cases are composed of the head and eye form, the peracute form of MCF results in sudden death, separation of cattle from wildebeest and sheep = best method of control

Question 46

African swine fever is the sole member of the fam Asfarviridae what is false?

Accepted Answer

Very stable uses ornithdorus (soft tick) as a mechanical vector, Only known RNA arbovirus, Confined to sub-saharan Africa, the virus engages in hemmaglutination

Question 47

Which species can have parvovirus mechanically transmitted via flies?

Accepted Answer

cats

Question 48

While these are all clinical findings of CPV-2, what are considered the most important?

Accepted Answer

myocarditis, Enteritis, panleukopenia

Question 49

Which of the following diseases does not have a vaccine available?

Accepted Answer

Canine herpes virus 1, African swine fever, malignant catarhal fever

Question 50

Myocarditis in pups develop after parvo infxn immediatley after birth.Sudden death, dyspnea, crying+ retching=clin signs

Accepted Answer

False

Question 51

ASF remains viable for long periods in blood, feces and tissue. Concern with uncooked pork. Resistant to putrifaction

Accepted Answer

True

Question 52

Gallid herpes virus 1 causes infectious laryngotracheitis of chickens

Accepted Answer

True

Question 53

Kittens with FPV can get dic due to secondary bact infxn with ____.

Accepted Answer

endotoxin induces expression of tissue factor III on endothelial cells, gram neg endotoxemia

Question 54

Mareks disease is highly contagious. Which route of transmission is highly infectious, but labile

Accepted Answer

cell free viruses

Question 55

In mareks disease, some latently infected t cells can become cancerous during non productive neoplastic transformation

Accepted Answer

True

Question 56

Cerebellar hypoplasia is usually observed in kittens infected during last 2 wks of pregnancy AND first 2 wks of life

Accepted Answer

True

Question 57

only the mild form of gallid herpesvirus2 are preventable with the turkey herpesvirus vaccine

Accepted Answer

False

Question 58

Pigs act as the primary reservoirs for Pseudorabies and they are latent carriers for life. How is the virus trasmitted

Accepted Answer

saliva, nasal discharge, eating contaminated carcass, water or feed, milk of infected pigs, rodents

Question 59

Which of the following diseases are results of the subfamily betaherpesvirinae?

Accepted Answer

Inclusion body rhinitis

Question 60

in fully productive infection with Marek&#x27;s disease, MDV enters the feather epithelium by use of

Accepted Answer

infected t cells

Question 61

Following infection of the resp epithelium,latent EHV-1 infections=circulating T lymps and trigeminal ganglionic neurons

Accepted Answer

True

Question 62

Pseudorabies vaccination in enzootic areas can alleviate clinical signs, but it will not prevent infection or latency

Accepted Answer

True

Question 63

which of the following pathogroups associated with Marek&#x27;s disease have incidence of both neural & visceral lymphomas

Accepted Answer

vMDV, vv+mDV, vvMDV

Question 64

Which virus is considered pathogenic, and the etiological cause of post-weaning multisystemic wasting syndrome?

Accepted Answer

porcine circovirus 2, porcine circovirus1 can be used as a genetic backbone for chimeric vaccines

Block 8- Herpesviridae, Asfarviridae, Parvoviridae + cumulative

Questions 88

Block 8- Herpesviridae, Asfarviridae, Parvoviridae + cumulative

Questions 88