PQS - Avian tuberculosis + paratuberculosis ✅ Flashcards

1
Q

In the case of avian tuberculosis, no tubercles are formed

A

F

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2
Q

Avian tuberculosis is caused by Mycobacterium gallinarum

A

F

M. avium subsp. avium is the main causative agent, but also M. avium subsp. silvaticum and M. tuberculosis causes tuberculosis in birds

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3
Q

Avian tuberculosis is a generalised disease

A

T

Always causing generalisation

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4
Q

The most severe form of avian tuberculosis can be seen in 1-4 week old chicken

A

F

Seen in old birds only

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5
Q

The agent of avian tuberculosis infects animals generally per os

A

T

Airborne infection can also happen

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6
Q

Mycobacterium avium subsp avium causes tuberculosis in humans

A

F

Causes tuberculosis in BIRDS

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7
Q

Mycobacterium avium subsp. avium causes avian tuberculosis

A

T

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8
Q

Mycobacterium tuberculosis can cause generalized tuberculosis in parrots

A

T

In cage birds and parrots

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9
Q

The agent of avian tuberculosis can survive in the soil for several months

A

T

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10
Q

Drop of egg production is a clinical sign of avian tuberculosis

A

T

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11
Q

Clinical signs of avian tuberculosis can be seen in old birds

A

T

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12
Q

Poultry are widely vaccinated for the prevention of avian tuberculsosis

A

F

The vaccine is not effective

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13
Q

Avian tuberculosis is very frequent in large scale poultry farms

A

F

Seen in backyard poultry

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14
Q

The causative agent of avian tuberculosis is a resistant bacterium

A

T

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15
Q

Avian tuberculosis is mainly seen in chicken below 2 months of age

A

F

Old birds only!!

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16
Q

In case of avian tuberculosis tubercles can be seen in liver and spleen

A

T

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17
Q

Avian tuberculosis is treated with penicillin and tetracyclines

A

F

There is no treatment

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18
Q

Only Mycobacterium avium subsp. Avium can infect birds

A

F

Also M. avium subsp. silvaticum and M. tuberculosis causes tuberculosis in birds

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19
Q

Avian tuberculosis has been eradicated in Europe

A

F

Found worldwide

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20
Q

Avian tuberculosis can be typically seen in old, adult birds

A

F

T??

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21
Q

Mycobacterium tuberculosis can cause clinical signs in some bird species

A

T

Not very typical

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22
Q

The agent of avian tuberculosis cannot survive in the Environment, its resistance is low

A

F

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23
Q

Avian tuberculosis usually occurs at 6-8 weeks of age

A

F

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24
Q

Avian tuberculosis result in local processes

A

F

Generalised infection

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25
Avian tuberculosis can be diagnosed by slide agglutination or ELISA
T **But can be misguiding**
26
Avian tuberculosis is a common disease in large scale farms causing high economic losses
F
27
Waterfowl are more susceptible to avian tuberculosis
F
28
Crepitation during liver transection is characteristic for avian tuberculosis
F
29
Tuberculosis of poultry occur mainly in breeder flocks
T
30
Avian tuberculosis occur over 1 year of age
T
31
The tuberculin test is unreliable in poultry
T
32
The agent of paratuberculosis is a facultative intracellular bacterium
T **Both obligate pathogen and facultative intracellular**
33
Paratuberculosis is caused by Mycobacterium avium subsp. Paratuberculosis
T
34
The agent of paratuberculosis is shed in the faeces
T **Also found in the milk**
35
Aerosol infection is the main form of transmission of paratuberculosis
T F??? **Infection directly from faeces, of faeces may contaminate the food and water**
36
The resistance of the agent of paratuberculosis is low, it cannot survive in the environment
F **long survival of the bacterium in the environment ⭢ 6-9 months**
37
Paratuberculosis occurs most frequently in pigs
F **Cattle is most susceptible, but also sheep and goats are main hosts**
38
Clinical signs of paratuberculosis can mainly be seen only in those cases that were infected in the first six months of life
T **Infection over 6 months of life = asymptomatic, but shedding**
39
Fibrinous pneumonia is a typical lesion of paratuberculosis
F
40
The agent of paratuberculosis is shed only after the appearance of the clinical signs
F **shedding happens 3-5 months after infection, BEFORE clinical signs**
41
Postmortem lesions of paratuberculosis can be seen in the small intestine
T
42
The most severe clinical signs of Paratuberculosis can be seen in suckling calves
F **Symptoms appear at 2-5 years of age, typically after 2nd or 3rd calving**
43
Lesions are seen in the lungs of animals infected with paratuberculosis
F **Intestines**
44
Paratuberculosis has been eradicated from Europe
F **Worldwide**
45
The clinical signs of paratuberculosis is more severe in calves than in adults
F **Symptoms appear at 2-5 years of age**
46
Dyspnoea and nasal discharge are the main clinical signs of paratuberculosis
F **Main clinical signs is diarrhoea, hunched back**
47
Paratuberculosis occurs mainly in the tropical and subtropical countries
F **Worldwide**
48
The agent of paratuberculosis is shed in the faces and milk
T
49
The clinical signs of paratuberculosis are more severe in sheep than cattle
F **In sheep and goats clinical signs are less frequent**
50
Paratuberculosis is seen in young calves
F **Symptoms appear at 2-5 years of age**
51
Lesions of paratuberculosis are localized in the small intestine
T
52
In the case of paratuberculosis tuberculi can be seen in the anterior lobes of the lungs
F
53
Paratuberculosis can be treated with polymyxins
F **No treatment**
54
Paratuberculosis is seen cows above 2 years of age
T **Symptoms appear at 2-5 years of age**
55
Lesions of the paratuberculosis are localized in the small and large intestine
F **Mainly small intestines, sometimes proximal large intestines**
56
In the case of paratuberculosis no tuberculi are seen
T
57
Weight loss is a typical sign of paratuberculosis
T
58
In paratuberculosis, the nodules are seen primarily in the large intestine
F **Small intestines**
59
Paratuberculosis can be demonstrated by LST during early stages of infection
T
60
Paratuberculosis can be prevented by early vaccination of the calves
T **Vaccination is quite effective**
61
Paratuberculosis can be treated with penicillin and enrofloxacin
F **No treatment**
62
Paratuberculosis can be prevented by vaccination
T
63
Paratuberculosis is believed to cause Chron’s disease
T
64
Young animals are resistant to paratuberculosis
F
65
Wasting is the main clinical sign
???
66
Paratuberculosis is also called Johne’s disease
T
67
Paratuberculosis is a chronic disease with diarrhoea affecting mainly ruminants
T
68
The disease paratuberculosis can develop in animals above 2 months
F
69
Paratuberculosis can be prevented by vaccination only in countries where it is eradicated
T
70
In Paratuberculosis, nodules can be found in intestinum crassum
F
71
Young animals are more susceptible to paratuberculosis
T
72
Paratuberculosis virulence factor is phospholipase C
F
73
Paratuberculosis cause proliferative enteritis in small intestines
T
74
Cattle paratuberculosis shows more severe lesions than sheep/goat
T