Coronaviridae

1. 1Coronaviruses are DNA viruses with an envelop

   1. ATrue
   2. BFalse
2. 2Some of the coronaviruses include

   1. AFeline enteric coronavirus, feline infectious peritonitis, transmissible gastroenteritis virus, porcine epidemic diarrhoea, porcine haemagglutination encephalomyelitis, infectious bronchitis, bovine coronavirus, canine coronavirus, SARS
   2. BFeline enteric coronavirus,porcine respiratory and reproductive syndrome, transmissible gastroenteritis virus, porcine haemagglutination encephalomyelitis, infectious bursal disease of chickens, bovine coronavirus, bovine viral diarrhoea
   3. CFeline enteric coronavirus, feline infectious peritonitis, porcine epidemic diarrhoea, bovine coronavirus, canine coronavirus
   4. DFeline enteric coronavirus, feline infectious peritonitis, porcine epidemic diarrhoea, bovine coronavirus, canine coronavirus, infectious bursal disease of chickens, bovine viral diarrhoea
3. 3There are 4 categories for coronaviruses this are:

   1. ANeurological
   2. BRespiratory
   3. CImmunological
   4. DEnteric
   5. EAbortive
   6. FCutaneous
   7. GCardiac
   8. HHepatic
4. 4There are [blank_start]four[blank_end] types of porcine coronaviruses. these include: [blank_start]Porcine respiratory coronavirus[blank_end], [blank_start]Transmissible gastroenteritis virus[blank_end], [blank_start]porcine epidemic diarrhoea[blank_end] & porcine [blank_start]haemagglutinating encephalomyelitis[blank_end] virus. The only porcine coronavirus endemic to Australia is [blank_start]PHEV[blank_end]. Clinical signs for this virus include [blank_start]vomiting[blank_end], wasting and [blank_start]CNS signs[blank_end]. This virus has a [blank_start]respiratory[blank_end] spread and affects piglets younger than 3 weeks.

   1. Afour
   2. Btwo
   3. Cthree
   4. DPorcine respiratory coronavirus
   5. EPorcine encephalomyelitis
   6. FTransmissible gastroenteritis virus
   7. GPorcine respiratory & rep syndrome
   8. Hporcine epidemic diarrhoea
   9. IVesicular stomatitis virus
   10. Jhaemagglutinating encephalomyelitis
   11. KVesicular exanthema
   12. LPHEV
   13. MPRC
   14. NTGV
   15. Ovomiting
   16. PDiarrhoea
   17. QCNS signs
   18. Rskin rash
   19. Srespiratory
   20. Toral
   21. UInsect
   22. Vclose contact
   23. WSexual
5. 5Porcine respiratory coronavirus (PRC) is a mutant of transmissible gastroenteritis virus (TGEV) that has a preference (tropism) for the respiratory tract

   1. ATrue
   2. BFalse
6. 6Sources of possible TGD (transmissible gastroenteritis diarrhoea) out brakes are:

   1. APigs
   2. BDogs
   3. CHorses
   4. DCats
   5. EFoxes
   6. FSheep
   7. GCattle
7. 7Porcine epidemic diarrhoea virus acts as a natural vaccine for transmissible grastroenteritis virus

   1. ATrue
   2. BFalse
8. 8Porcine haemagglutinating encephalitis is transmitted via

   1. AFecal-oral route
   2. BAerosol
   3. CRespiratory spread
   4. DClose contact
   5. EFomite
9. 9Transmissible gastroenteritis & porcine epidemic coronavirus are spread via [blank_start]faecal-oral[blank_end]. Sources of TGV include [blank_start]pigs, dogs, foxes and cats[blank_end] while PED sure are pigs only. Both viruses cause [blank_start]diarrhoea[blank_end] by affecting enterocytes on the [blank_start]tip[blank_end] of the villous in the small intestine. This causes a reduced digestion and [blank_start]malabsorption[blank_end] of foods, which manifests in [blank_start]diarrhoea[blank_end]. TGV affects pigs of all ages. In piglets [blank_start]<10days[blank_end] old causes [blank_start]100%[blank_end] mortality; Piglet>21 days survive but unthrive for the rest of their life & adults get [blank_start]a mild[blank_end] disease. PED also affects pigs of all ages. Piglets have a [blank_start]50%[blank_end] mortality rate if [blank_start]<1w[blank_end] old and adults have a moderate disease.

   1. Afaecal-oral
   2. BOral
   3. CRespiratory
   4. DFomite
   5. Epigs, dogs, foxes and cats
   6. Fpigs and foxes
   7. Gpigs, cattle and sheep
   8. Hdiarrhoea
   9. IFever
   10. JCNS signs
   11. KRespiratory illness
   12. Ltip
   13. Mcrypts
   14. Nmalabsorption
   15. Oabsorption
   16. Pdiarrhoea
   17. Qconstipation
   18. R<10days
   19. S>10days
   20. T<5days
   21. U>5days
   22. V100%
   23. W10%
   24. X50%
   25. Ya mild
   26. Zno
   27. AAa strong
   28. AB50%
   29. AC5%
   30. AD100%
   31. AE15%
   32. AF<1w
   33. AG>1w
   34. AH<3w
   35. AI<2w
10. 10The following are feline coronaviruses

    1. AFeline leukaemia virus (FELV)
    2. BFeline immunodeficiency virus (FIV)
    3. CFeline enteric coronavirus (FICV)
    4. DFeline infectious peritonitis (FIP), Feline enteric coronavirus (FICV)
    5. EParvovirus, Feline immunodeficiency virus (FIV)

11. 11Feline enteric coronavirus produces enteric disease in a similar way of transmissible gastroenteritis virus but the clinical signs are less severe

    1. ATrue
    2. BFalse
12. 12Porcine respiratory coronavirus symptoms include

    1. ADyspnoea, mucosal discharge, conjuntivitis
    2. BUsually asymptomatic
    3. CNasal discharge
    4. DUlceration of the snouts
13. 13Pathogenesis of Porcine haemagglutinating encephalitis: Virus replicates in the [blank_start]URT[blank_end] and [blank_start]tonsils[blank_end] then spreads via [blank_start]Peripheral[blank_end] NS to the [blank_start]CNS[blank_end]. Viral replication in vagal sensory ganglion causes [blank_start]vomiting[blank_end].

    1. AURT
    2. BLRT
    3. CMouth
    4. DNose
    5. Etonsils
    6. Fsubmandibular lymph nodes
    7. GParotid lymph nodes
    8. HSuperficial cervical lymph nodes
    9. IPeripheral
    10. JSympathetic
    11. KParasympathetic
    12. LCNS
    13. MEnteric NS
    14. NMedulla
    15. Ovomiting
    16. PVertigo
    17. Qnumbness
14. 14Feline enteric coronavirus is a mutant of Feline infectious peritonitis ant this mutation makes it less pathogenic

    1. ATrue
    2. BFalse
15. 15Cats are exposed to Feline infectious peritonitis (FIP), the virus replicates in [blank_start]Macrophages[blank_end] and the animal produces an effective cell mediated immunity (CMI). This occur in most cases BUT in [blank_start]15%[blank_end] of the population there is a [blank_start]decreased CMI[blank_end] and this animals become [blank_start]persistently[blank_end] infected with [blank_start]no apparent[blank_end] signs but sporadically shedding virus. Other part of the population (Kittens/older cats) produce a [blank_start]defective CMI[blank_end] and virus [blank_start]continues[blank_end] replication in Macrophages, there is a B cell activation that produces [blank_start]non-protective[blank_end] Ab creating immune complex formation and therefore vasculitis. From this point two things can occur:
    1. Moderate pyogranulomatos lesions causing what is known ad [blank_start]DRY[blank_end] FIP which kills cats in [blank_start]months[blank_end]
    2. Severe marked vascular permeability which causes what is known as [blank_start]WET[blank_end] FIP killing animals in [blank_start]weeks[blank_end]

    1. AMacrophages
    2. BLeukocytes
    3. CDendritic cells
    4. DEpithelial cells
    5. E15%
    6. F5%
    7. G2%
    8. Hdecreased CMI
    9. Iincreased CMI
    10. Jpersistently
    11. Kseverally ill
    12. Lno apparent
    13. Mapparent
    14. Ndefective CMI
    15. Oeffective CMI
    16. Pcontinues
    17. Qstops
    18. Rnon-protective
    19. Sprotective
    20. TDRY
    21. UWET
    22. VWET
    23. Whaemorrhagic
    24. Xmonths
    25. Ydays
    26. Zweeks
    27. AAyears
16. 16Infectious bronchitis is an important coronavirus of dogs

    1. ATrue
    2. BFalse

Description

Virology Quiz on Coronaviridae, created by Claudia Isaza on 18/04/2017.

Author

Claudia Isaza

Language

English

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virology

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