Arteriviruses Flashcards
Arterivirus, the virulence is highly variable
true
1) The equine viral arteritis is caused by an arterivirus
true
2) Serological tests can NOT be used for laboratory detection of equine viral arteritis
false
3) Red blood cells can be used for laboratory detection of equine viral arteritis virus
false
4) Nasal fluid can be used for laboratory detection of equine viral arteritis virus
true
5) A semen sample can be used for laboratory detection of equine viral arteritis virus
true
6) Equine arteritis virus is very resistant to physical damages
false
7) Equine viral arteritis is usually asymptomatic
false, should be true
8) In cases of equine viral arteritis, the rate of seroconverted animals increases with age
true
9) The main target cells of equine viral arteritis are macrophages
true
10) Equine Viral arteritis (EVA) virus can affect donkeys
true
11) The persistence of EVA virus within one herd is usually caused by the stallions
true
12) EVA is transmitted by sexual and aerogenic pathways
true
13) EVA can cause persistent virus carrying
true
14) Equine Viral Arteritis virus can infect by inhalation
true
15) Vaccine against Equine Viral Arteritis is never used in Europe
false
16) The Equine Viral Arteritis is caused by retrovirus
false
17) The equine viral arteritis virus cannot damage the wall of blood vessels
false
18) The equine viral arteritis virus rarely causes asymptomatic infection
false
19) The equine viral arteritis virus always causes clinical symptoms
false
20) EVA is spread by insect vectors
false
21) Long term carrier of EVA
true
22) Equine viral arteritis causes reproductive problems/impotence in stallions
true
23) Acute equine viral arteritis is similar to Equine infectious anaemia
true
24) Equine viral arteritis in mare is reactivated in pregnancy
false
25) Equine viral arteritis, aborted embryos have degenerated liver
false
26) Mares are frequently life-long carriers of the Equine arteritis virus
false
27) Subcutaneous oedema is a frequent sign of equine viral arteritis.
true
28) Pregnant mares usually abort in the acute phase of equine viral arteritis
true
29) Equine viral arteritis is diagnosed by agarose-gel immunodiffusion (Coggins test).
false
30) The Equine arteritis virus may cause abortion in pregnant mares
true
31) Vaccination of colts before puberty can prevent the development of EAV-carrier status.
true
32) Stallions may be long-term carriers of the Equine arteritis virus
true
33) Conjunctivitis and subcutaneous oedema are possible signs of equine viral arteritis.
true
34) Equine viral arteritis virus can infect through nasal route.
true
35) Equine viral arteritis virus can infect per os
true
36) Equine viral arteritis virus can infect through venereal way
true
37) Equine viral arteritis virus can infect only by arthropods
false
38) Equine arteritis virus is a uniform virus without serotypes, subtypes etc
true
39) Aerogenic infection can happen in the case of equine arteritis virus.
true
40) Equine arteritis virus is shed in the semen
true
41) Equine arteritis virus can cause abortion
true
42) Lameness due to inflammatory joints is the most typical sign of Equine infectious arteritis
false
43) Equine infectious arteritis is a notifiable disease; therefore vaccinations are forbidden
false
44) After equine viral arteritis virus infection, mortality rate is low.
true
45) Equine infectious arteritis is a notifiable disease
true
46) The main target of Equine viral arteritis virus is macrophages
true
47) Equine infectious arteritis is stenoxen viruses
true
48) Equine viral arteritis can be controlled in part by removing long-term carriers.
true
1) PRRS is caused by an arterivirus
true
2) PRRS is caused by a coronavirus
false
3) The clinical signs of PRRS can be abortion like that of SMEDI
true
4) Isolation of PRRS in cell culture can be easily performed in any laboratory
false
5) PRRS has only highly pathogenic variants
false
6) Respiratory signs of PRRS occur just in sows
false
7) PRRS virus replicates in macrophages
true
8) PRRS virus replicates in T-lymphocytes
false
9) The pathological signs of PRRS is typical because the lymph nodes are never enlarged
false
10) PRRS virus affects the respiratory system in young piglets
true
11) PRRS cause digestive sign in adult
false
12) PRRS has 2 phases
true
target cells of PRRSV are alveolar epithelial cells
false
14) PRRS can only be isolated in porcine kidney cells
false
15) PRRS causes immune suppression in prolonged cases
false
16) Attenuated and inactivated vaccines are available against PRRS
true
17) PRRS virus causes severe intestinal problems in adult pigs
false
18) PRRS is characterized by respiratory disease in adult pigs
false
19) PRRSV attacks the active macrophages
true
20) For PRRS prevention we can get a very good immunization with inactivated vaccines.
false
21) PRRS: reproductive and respiratory problems and others with other virulence
true
22) Maternal immunity protects only short time against PRRS.
true
23) Porcine reproductive and respiratory virus (PRRSV) can cause abortion only in the advanced stage of pregnancy (over 90 days).
false
24) Only inactivated vaccines can be used for the prevention against PRRSV
false
25) Porcine reproductive and respiratory virus (PRRSV) propagates in lymphatic cells.
true
26) PRRSV infection may influence the reproductive performance of boars.
true
27) Porcine reproductive and respiratory virus (PRRSV) is a zoonotic agent.
false
28) Porcine parvoviruses and PRRSV may cause similar disease in sows
true
29) Porcine reproductive and respiratory vines (PRRSV) does not cause clinical signs in boars
false
30) Inactivated vaccines alone cannot induce protective immunity against PRRSV.
true
31) Boars can transmit porcine reproductive and respiratory syndrome virus in the semen
true
32) Porcine reproductive and respiratory syndrome virus cannot cause abortion, only infertility of the sows
false
33) There are no vaccines for the prevention of Porcine reproductive and respiratory syndrome.
false
34) The blue ear disease is caused by dog coronavirus
false
35) The blue ear disease is caused by FIP
false
36) The blue ear disease is caused by chicken coronavirus
false
37) The blue ear disease is caused by PRRS
true
38) Does PRRS virus have 3 genotypes
false
39) Oedema can be a sign of PRRS
true
40) PRRS is deadly in adult animals
false
41) The Porcine reproductive and respiratory syndrome (PRRS) is only present in North- America
false
42) The PRRS virus may cause reproductive problems in boars
true
43) PRRS: cyanosis is one clinical symptom
true
