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Epizoo > 8. Coronaviral infectious diseases (bovine, swine, avian)) > Flashcards

8. Coronaviral infectious diseases (bovine, swine, avian)) Flashcards

1
Q

What causes coronaviral infectious diseases?

A

Virus from Family Coronaviridae

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2
Q

What type of virus is Coronavirus?

A

RNA virus with S-protein (spikes)

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3
Q

What does a coronavirus infection generally cause?

A

Infection of upper RT and GIT

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4
Q

Which species does corona virus effect?

A

mammals, birds and man

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5
Q

What are the 4 important genuses of coronavirus and which species do they affect?

A
  • Alphacoronavirus- transmissible gastroenteritis of swine, canine coronavirus and feline infectious peritonitis virus
  • Betacoronavirus- bovine coronavirus, equine coronavirus and porcine hemagluttination encephalomyelitis, SARS-Cov-2
  • Gammacoronavirus – infectious avian bronchitis
  • Deltacoronavirus - porcine deltacoronavirus
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6
Q

What organs does bovine coronavirus affect?

A

GIT and RT

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7
Q

What is important to mention about coronavirus

A

They are contagious and can be zoonotic

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8
Q

What is the agent for causing bovine corona virus?

A

Bovine coronavirus - betacorona virus

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9
Q

What is transmission of bovine, swine and avian coronavirus?

A

By ingestion or inhalation of agent.
Excreted from milk, nasal discharge and feces.

Swine coronavirus = Very quickly spread, no other disease is spread so rapidly - 1 day!

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10
Q

What are clinical signs in cattle with corona virus?

A
  • GIT: gastroenteritis, bloody diarrhea, dysentery.
  • RT: nasal discharge, dyspnea, coughing
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11
Q

How is bovine, swine and avian coronavirus diagnosed?

A

Bovine, swine: RT-PCR
Avian: RT-PCR or ELISA

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12
Q

How is bovine, swine and avian coronavirus treated?

A
  • Supportive treatment - ATB for secondary infection.
  • No vaccine in bovine.
  • In swine, dam vaccination and then suckling piglets get immunity from colostrum
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13
Q

How can bovine, swine and avian coronavirus prevented?

A

Hygiene measures.
For avian coronavirus - Vaccination can also be made, by spraying vaccine over flock.

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14
Q

What is swine corona virus causing in host?

A

GIT infection - Transmissible gastroenteritis
100% mortality in piglets.

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15
Q

What is the agent responsible for causing coronavirus (transmissible gastroenteritis) in swine?

A

Swine coronavirus - alphacorona virus

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16
Q

What are clinical signs in swine with coronavirus?

A
  • GIT: bloody diarrhea from destruction and atrophy of intestine.
  • In piglet: metabolic acidosis and hypoglycemia
17
Q

What is the agent causing corona virus in birds?

A

Avian coronavirus - gammacorona virus

18
Q

What does avian coronavirus cause in host?

A

RT infection, infectious bronchitis in chicken

19
Q

What are clinical signs of coronavirus in bird?

A

RT: Dyspnea, coughing, nasal discharge
General clinical signs: Decreased egg production and low egg shell content

Epizoo (16 decks)

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