Epi midtern 1- from the top part 3 Flashcards

1
Q

Germinative infection can happen in birds.

A

true

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2
Q

Galactogen infection is a form of horizontal infections.

A

false

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3
Q

Aerogenic infection is a form of direct infection.

A

false

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4
Q

If an agent is transmitted by the veterinarian, we speak about iatrogenic infection.

A

true

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5
Q

Euryxen agents can infect many host species

A

true

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6
Q

The LD50 value shows the virulence of a strain.

A

true

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7
Q

The virulence of an agent is a stable characteristic of it

A

false

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8
Q

A minimum amount of the agent is necessary to cause disease.

A

true

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9
Q

Subacute diseases last one or 2 days.

A

false

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10
Q

Mortality shows the proportion of dead animals compared to the number of diseases ones.

A

false

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11
Q

Monitoring is routine collection of data on a disease.

A

true

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12
Q

Pandemic disease occurs in large areas, continents

A

true

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13
Q

The principle of “all in all out” is an important way of prevention of infectious diseases

A

true

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14
Q

Isolation of age groups is an important way of prevention of infectious diseases

A

true

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15
Q

Maternal protection occurs only in mammals.

A

false

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16
Q

Colostrum is the main way of maternal protection in the case of animals with epitheliochorial placenta.

A

true

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17
Q

Circovirus can easily be cultured in different homologous cell lines.

A

false

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18
Q

Swine circovirus causes lesions in multiple organs and strong immunosuppression.

A

true

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19
Q

For prevention of Swine circovirus disease only general hygienic measures can be used.

A

false

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20
Q

Swine circovirus can cause retarded growth and strong immunosuppression.

A

true

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21
Q

Swine circovirus caused disease occurs worldwide, it is frequent.

A

true

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22
Q

Circovirus in geese and ducks can cause retarded growth and feather formation
disturbances.

A

true

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23
Q

Infectious Chicken Anemia virus can cause clinical signs only in layer hens.

A

false

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24
Q

Resistance of circovirus is very low, in the environment they are inactivated within a day

A

false

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25
Swine parvovirus is shed in the feces for some weeks after contracting the infection
true
26
Aleutian disease is a parvovirus caused immunocomplex disease of minks.
true
27
Goose parvovirus can spread both horizontally and vertically.
true
28
Cat panleukopenia virus can infect only cats
false
29
Swine parvovirus usually causes fetal damages in first pregnant gilts.
true
30
Aleutian Mink Disease occurs only in the US
false
31
The incubation period of Cat panleukopenia is short, usually 3 to 5 days.
true
32
Papilloma viruses usually cause local infections in epithelial cells.
true
33
For prevention of Parvovirus Mink Enteritis, live attenuated vaccines are available.
true
34
Swine parvovirus maternal antibodies can exist up to 6 to 12 months of age.
false
35
Cat panleukopenia virus can cause abortion in pregnant cats.
true
36
Goose polyomavirus causes hemorrhagic nephritis and enteritis in all age groups.
false
37
Adenoviruses are resistant to detergents.
true
38
Ocular lesions can develop in the extended and chronic stages of canine viral hepatitis.
true
39
Lymphocyte cell count does not change during Canine adenovirus 1 infection.
false
40
No vaccine is available against Canine adenovirus 2
false
41
Adenovirus can cause pneumoenteritis in calves and lambs.
true
42
Poor keeping conditions and colostral immunity significantly influence the severity of adenovirus-associated diseases in cattle.
true
43
Anemia and increased mortality are signs of chicken inclusion body hepatitis
true
44
The pathologic lesions of egg drop syndrome virus and polyoma virus infection in goose are the same.
false
45
Herpesvirus can cause latent, persistent infections.
true
46
Bulls can shed the infectious bovine rhinotracheitis virus with semen.
true
47
Conjunctivitis and blepharitis are signs of infectious bovine rhinotracheitis virus
true
48
Bovine herpesvirus 2 frequently causes abortion.
false
49
The natural reservoir hosts of the Aujeszky's disease virus are rodents.
false
50
Aujeszky's disease virus infection in adult pigs is frequently subclinical.
true
51
Dogs should be vaccinated against Aujeszky's disease.
false
52
Bloody nasal discharge can be a sign of Swine Inclusion Body Rhinitis.
true
53
Only Equine herpesvirus 4 can cause abortions.
false
54
Fever and serous nasal discharge are early signs of Equine Viral Rhinopneumonitis.
true
55
Immunization against Equine Rhinopneumonitis virus provides life-long protection.
false
56
Equine herpesvirus 2 may cause keratoconjunctivitis.
true
57
Canine herpesvirus infection can cause abortion.
true
58
Conjunctivitis and muco-purulent nasal discharge are frequent signs of Feline Rhinotracheitis.
true
59
The Infectious Laryngotracheitis virus does not cause viraemia.
true
60
Ducks are the most susceptible in Infectious Laryngotracheitis virus.
false
61
Mallards may transmit the duck enteritis virus to domestic ducks kept in lakes.
true
62
Liver dystrophy is a frequent lesion in duck viral enteritis.
true
63
Pigeon herpesvirus mainly causes encephalitis in adult pigeons.
false
64
The neurological form of the Marek's disease is seen only in day-old chicks.
false
65
Serological cross-reactions exist between certain poxvirus species.
true
66
In cattle, Cowpox lesions are usually seen on the teats.
true
67
In cattle, Pseudo-cowpox lesions are usually seen on the teats.
true
68
Calves should be vaccinated against Bovine Papular Stomatitis.
false
69
Contagious pustular dermatitis virus may survive in the environment for ages.
true
70
Vaccination against contagious pustular dermatitis virus provides lifelong protection.
false
71
Sheep pox virus can cause respiratory signs and abortion.
true
72
Ruminants are susceptible to the lumpy skin disease virus.
true
73
Arthropods play an important role in the transmission of Sheep pox virus.
false
74
Arthropods play an important role in the transmission of Lumpy Skin Disease virus.
true
75
Arthropods play an important role in the transmission of Myxoma virus.
true
76
Arthropods play an important role in the transmission of Fowl pox virus.
true
77
Subcutaneous swellings are typical signs of Myxomatosis.
true
78
Virulent strains of the myxoma virus are only present in Australia.
false
79
The diphteric (wet) form of Fowl pox develops after viraemia and generalized infection.
true
80
Attenuated vaccines are available against Fowl pox.
true
81
In the case of direct infectious tissues of the infected and the susceptible animals are in contact.
true
82
Arthropods can be involved in indirect infections
true
83
Fetuses cannot be infested since the placenta completely isolates them.
false
84
If the dam infects newborn animals, we speak about horizontal infection.
false
85
Certain animal species are resistant against certain agents.
true
86
Mycotoxins in the feed can be immune suppressive.
true
87
Fetuses have no immune reaction.
false
88
There is no local immune reaction in newborn animals.
false
89
The incubation time is the time between infection and the appearance of clinical signs.
true
90
The animals do not carry the agent after recovery from an infectious disease because the immune system eliminates it.
false
91
In the case of abortive infections, abortion is the main clinical sign.
false
92
Tolerated infections result in high level of immune reaction.
false
93
There is no maternal immunity in birds.
false
94
The immunoglobulin content of the colostrum is not changing in the first week of life.
false
95
The colostrum contains maternal lymphocytes.
true
96
According to DIVA principle, infected and vaccinated animals can be differentiated.
true
97
The resistance of Circoviruses is high, they remain infectious in the environment for several months.
true
98
Infectious chicken anemia virus causes clinical signs in chicken of 1 to 4 weeks of age
true
99
For prevention of swine circovirus disease, inactivated vaccine is available.
true
100
Avian circoviruses do not cause clinical signs in domestic birds.
false