MT2 - Flavi Flashcards
1) Serological cross reactions frequently occur between related flaviviruses
T
2) Pestiviruses are zoonotic
F
3) Pestiviruses are arboviruses
F
4) Louping ill is seen in cattle in North America
F
5) The louping ill was introduced to Austrailia to control rabbit population
F
6) The louping ill is seen in cattle in Great Britain and Scandinavia
F
7) The tick borne encephalitis is endemic in central Europe
T
8) The main vectors of tick borne encephalitis virus are sylvatic mammalian species
F
9) The tick borne encephalitis virus can be transmitted via consumption of raw milk
T
10) Migratory birds play a role in the transmission of West Nile virus
T
11) Mammals are mostly accidental hosts of West Nile Fever virus
T
12) West Nile Fever is a notifiable disease
T
13) In West Nile epidemics wild bird mortality is usually observed before horse and human cases can be detected
T
14) To prevent West Nile Fever, vaccine is available for horses
T
15) The West Nile Fever can be diagnosed unambiguously by the clinical signs
F
16) The West Nile Fever virus infects mostly swine and cattle
F
17) The West Nile virus may cause encephalitis in humans and in horses
T
18) Horses and humans do not play a significant role in the transmission of West Nile virus
T
19) The West Nile fever epidemics occur usually at the end of summer and during Autumn
T
20) West Nile fever is a notifiable disease
T
21) The Japanese encephalitis virus causes abortion in swine
T
22) The Wesselsbron disease causes meningoencephalitis in turkey
F
23) The yellow fever virus causes liver damages
T
24) The zika virus causes fever, rash and conjunctivitis in humans
T
25) BVDV can be frequently detected in the background of respiratory diseases
T
26) Cytopathic and non-cytopathic biotypes of the Bovine Viral Diarrhoea (BVD) virus are known
T
27) In utero infection with non-cytopathic BVDV can cause seropositivity of the newborn calf
T
28) Non cytopathic strains of Bovine viral diarrhoea virus (BVDV) can cause hydrocephalus and cerebellar hypoplasia
F
29) In utero infection with non cytopathic BVDV can cause immunotolerance
T
30) Pigs infected with BVDV turn seropositive to classical swine fever
T
31) Persistently infected cattle can maintain BVDV in a farm
T
32) Cytopathic strains of Bovine Viral diarrhoea (BVDV) alone can cause mucosal disease
F
33) The BVD virus can infect pigs also
T
34) Cytopathic strains of the Bovine Viral Diarrhoea virus (BVDV) can cause abortion
T
35) Non cytopathic strains of Bovine Viral Diarrhoea virus (BVDV) do not cause transplacental infection
?
36) Cattle which are immune tolerant to BVD virus may develop mucosal disease
T
37) In sheep BVDV causes symptoms similar to border disease
T
38) Mucosal disease can develop in cattle persistently infected with BVDV
T
39) Non cytopathic strains of Bovine viral diarrhoea virus (BVDV) can cause immunosuppression
T
40) BVDV can be transmitted by semen
T
41) In mucosal disease sharp edged, usually round or oval ulcers can be observed on the oral mucosa
T
42) In mucosal disease haemorrhages can be observed under the serosal surfaces and in the kidney cortex
T
43) Bloody diarrhoea is a clinical sign of the mucosal disease
T
44) The Border disease virus causes pneumonia in sheep
F
45) The border disease is present only in the United Kingdom
F
46) The border disease virus frequently causes encephalitis in ewes
F
47) Haemorrhagic enteritis is a characteristic pathological lesion of Classical swine fever
T
48) Classical swine fever virus can be transmitted by raw pork products
T
49) Classical swine fever virus can retain its infectivity for 6 months in frozen meat
T
50) During necropsy enlarged bloody lymph nodes can be seen in Classical swine fever cases
T
51) Because of endothelial damage Classical swine fever results in haemorrhages
T
52) In acute Classical swine fever, at the beginning obstipation, later diarrhoea can be observed
T
53) Classical swine fever targets the bone marrow stem cells
T
54) Weakness of the hind legs and ataxia are clinical signs of Classical Swine Fever
T
55) Ischaemic infarcts at the edges of the pleen are postmortem lesions of subacute Classical Swine Fever
T
56) The boutons in the intestines are characteristic lesions in subacute Classical Swine Fever
T
57) Kidney haemorrhage is a characteristic lesion of Classical Swine Fever
T
58) During necropsy of acute Classical swine fever cases, haemorrhages can be seen in the gastric mucosa
T
59) Among Classical Swine Fever clinical signs CNS and eye problems can be observed
T
60) Classical swine fever infection during the first half of pregnancy results in the birth of immunotolerant piglets
T
61) Classical swine fever causes oronasal infection
T
62) Classical swine fever can be transmitted by mating
T
63) Classical swine fever targets lymphatic tissues
T
64) Clinical signs of Classical Swine fever are mainly seen in 6-12 week old piglets in vaccinated herds
T
65) Classical swine fever infection during the first half of pregnancy can lead to abortion
T
66) In Europe it is obligatory to vaccinate against Classical swine fever
F
67) In acute Classical swine fever skin haemorrhages and bloody nasal discharge can be observed
T
68) Normal sized spleen can be observed in uncomplicated cases of subacute Classical swine fever
T
69) Classical swine fever infection results in immunosuppression
T
