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Virology > Viral Diseases of Poultry (17 & 18) > Flashcards

Viral Diseases of Poultry (17 & 18) Flashcards

1
Q

What is the major integumentary poultry viral diseases?

A

fowl pox (family poxviridae) - DNA virus (doesn’t mutate easily)

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2
Q

Who gets fowl pox? What kind of transmission?

A

chickens & turkeys
horizontal transmission - mosquitos sometimes

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3
Q

How does one contract fowl pox?

A

scratch on skin - lesions
histopathology
intracytoplasmic inclusion bodies aka Bollinger bodies

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4
Q

What are the types of fowl pox?

A

dry pox
wet pox

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5
Q

What is dry pox?

A

likes right on the skin and will move
commonly on turkeys - will lead a normal life usually

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6
Q

What is wet pox?

A

type of fowl pox that will move inside the oral cavity
not as manageable as dry pox

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7
Q

How do you prevent fowl pox?

A

vaccinate at wingweb
chickens: inner thigh vaccination
turkey: eliminate vectors

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8
Q

What is the major respiratory disease in poultry?

A

Newcastle disease - paramyxoviridae

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9
Q

What are the properties of paramyxoviruses?

A

enveloped, RNA (prone to mutation)

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10
Q

What is VVND?

A

an acute, fatal infection of birds of all ages with predominant haemorrhagic lesions of the gastrointestinal tract, severe depression, and death prior to clinical manifestations.
caused by the most virulent strain of the Newcastle disease virus
reportable

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11
Q

What is NVND?

A

Neurotropic velogenic Newcastle disease

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12
Q

What are features of lentogenic and mesogenic (endemic) strains of Newcastle disease?

A

not reportable
2 colibacillosis
vaccinate via water or spray

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13
Q

How is Newcastle Disease zoonotic?

A

conjunctivitis, mild flu-like symptoms

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14
Q

New exposure typically results in [acute/convalescent] and old exposure to [acute/convalescent]

A

acute
convalescent

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15
Q

What is poultry influenza? Its properties?

A

orthomyxovirus HPAI - H5/H7
enveloped, RNA
reportable

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16
Q

What does influenza affect? Which serves as a reservoir?

A

chickens and turkeys
reservoir: waterfowl/shorebirds

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17
Q

T/F: There is a vaccine for influenza for birds

A

FALSE - is zoonotic and a pandemic concern
can’t because of import/export rules

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18
Q

Which 2 strains of influenza are we concerned about in the US regarding poultry?

A

H5
H7

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19
Q

What is avian infectious bronchitis? Its properties?

A

coronaviridae (coronavirus)
enveloped, RNA

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20
Q

How is infectious bronchitis transmitted? Prevention?

A

chickens - horizontal transmission
vaccination

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21
Q

What is avian infectious laryngotracheitis? Its properties?

A

herpesviridae
enveloped, DNA
has inclusions

22
Q

How is infectious laryngotracheitis transmitted? Prevented?

A

chickens - horizontal transmission
reportable - regional movement and trade implications
vaccinate - CEO and TCO vaccines, eyedrop method

23
Q

What are the gastrointestinal families in poultry?

A

neonatal enteritis
astroviridae, parvoviridae, reoviridae - rotavirus

24
Q

What are the properties of gastroinestinal viruses?

A

non-enveloped, RNA

25
Q

How are gastroinestinal viruses transmitted? How do you prevent/treat it?

A

fecal-oral route
chickens and turkeys - horizontal transmission
no vaccines, palliatively to prevent malabsorption syndrome

26
Q

What is coronavirus enteritis of turkeys?

A

coronaviridae (coronavirus)
enveloped, RNA

27
Q

How is coronavirus enteritis of turkeys transmitted? Prevented?

A

turkeys
horizontal transmission

28
Q

T/F: There is not a vaccine for coronavirus enteritis of turkeys

A

TRUE

28
Q

What is turkey viral hepatitis?

A

picornaviridae
non-enveloped, RNA

29
Q

How is turkey viral hepatitis transmitted? Prevented?

A

turkeys - horizontal and vertical transmission
no vaccine

30
Q

What is inclusion body hepatitis / hepatitis-hydropericardium syndrome?

A

adenovirisae
non-enveloped, DNA

31
Q

How is inclusion body hepatitis / hepatitis-hydropericardium syndrome transmitted? Prevented?

A

chickens - horizontal and vertical transmission
requires concomitant immunosuppressive event
vaccinate breeders, do not use eggs from suspect breeder flocks

32
Q

What are renal viruses in poultry?

A

neonatal enteritis
infectious bronchitis

33
Q

What is the result of renal viral diseases?

A

renal failure —> visceral / articular gout (uric acid accumulation)

34
Q

What is infectious mural disease?

A

immunological disease
birnaviridae (birnavirus) says it in the word
non-enveloped, RNA

35
Q

How is infectious burial disease transmitted? Prevented?

A

chickens - horizontal transmitted
treat secondary bacterial infections with antibiotics, vaccinate breeders, may need to vaccinate young birds if strong field challenge

36
Q

What is the hematological virus of birds?

A

lymphoid leukosis retroviridae avian leukosis virus - ALV-A, B, C, D, E, J
enveloped, RNA

37
Q

How is lymphoid leukosis transmitted? Prevented?

A

chickens - horizontal and vertical transmission
no vaccine, depopulate infected breeders

type virus for leukosis / sarcoma group of oncoviruses

38
Q

What is Marek’s Disease?

A

herpesviridae
enveloped, DNA

39
Q

How is Merek’s disease transmitted? Prevented?

A

chickens, horizontal transmission
tumors in T lymphocytes
vaccination in ovo or 1 day-of-age

40
Q

What is Egg Drop Syndrome?

A

adenoviridae
non-enveloped, DNA

41
Q

How is Egg Drop Syndrome transmitted? Prevented?

A

chickens - horizontal & vertical transmission
vaccinate layer pullets (killed vaccine)

infectious bronchitis - wrinkled eggs / production drop

42
Q

What is reoviral arthritis / tenosynovitis?

A

reoviridae
non-enveloped, RNA

43
Q

How is reovirus arthritis / tenosynovitis transmitted? Prevented?

A

chickens and turkeys horizontal
suspected vertical transmission, recovered carriers
vaccinate breeders

44
Q

What is osteoporosis (boot shanks)?

A

retroviridae (retrovirus, leucosis/sarcoma group)
enveloped, RNA

45
Q

How is osteoporosis (boot shanks) transmitted? Prevented?

A

chickens, adults - horizontal and vertical transmission
no vaccine, eliminate breeders due to vertical transmission

46
Q

What is Avian Encephalomyelitis (AE, Buzzing Chick Disease)?

A

picornaviridae
enveloped, RNA

47
Q

How is avian encephalomyelitis transmitted? Prevented?

A

chickens and turkeys - adults aclinical,
horizontal and vertical transmission
affects cerebellum and has ataxia
vaccinate breeders

48
Q

What is equine encephalitis?

A

togaviridae
enveloped, RNA

49
Q

How is equine encephalitis transmitted? Prevented?

A

birds including chickens and turkeys serve as reservoir
arthropod-borne (mosquito)
vector control

Virology (16 decks)

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