del 7 Flashcards
29.The following are DNA viruses:
a. Influenza virus C.
b. Rubella virus.
c. Fowl adenovirus 1
d. Cytomegalovirus.
e. Parvovirus.
T: c, d, e
F: a, b
31.The following viruses have segmented genomes:
a. Orthomyxoviridae.
b. Alfaherpesvirinae.
c. Coronavirus.
d. Hanthavirus.
e. Rotavirus.
f. Parvovirinae.
g. Bunyaviridae.
T: a, d, e, g
F: b, c, f
The following are positive stranded RNA viruses:
a. Bunyavirales.
b. Rubivirus.
c. Deltavirus.
d. Circovirus.
e. Astroviridae.
T: b, e
F: a, c, d
The following are negatively stranded RNA viruses:
a. Sheeppox viruses.
b. Orthomyxoviridae.
c. Coronavirus.
d. Flavivirus.
e. Lyssavirus.
T: b, e
F: a, c, d
Porcine Herpesvirus 1:
a. Aujeszky‘s disease or pseudorabies.
b. Viraemia by localization predominantly in reticuloendothelial cells.
c. The pig is natural host, cattle, man, dogs, foxes and rabbits are possible host.
d. Transplacental infection.
e. No vaccination.
T: a, c, d, e
F: b
Bovine herpesvirus I causes:
a. Encephalitis
b. Infectious pustular vulvovaginitis
c. Infectious bovine rhinotracheitis
d. Bovine mammilitis
c. Infectious bovine rhinotracheitis
Genus Mardivirus
a. Mark disease virus in poultry belongs to this genus
b. Is characterised by enveloped DNA viruses
c. Virus of infectious laryngotracheitis in poultry and virus of avian encephalomyelitis belong to this genus.
d. Belongs to the family Poxviridae.
T: a
F: b, c, d
Adenoviruses are
a. Double stranded DNA viruses, icosahedral
b. Non-enveloped DNA viruses, icosahedral
c. Double-stranded RNA viruses, helical
d. Single-stranded DNA viruses, icosahedral
T: a, b
F: c, d
Duck virus hepatitis (DVH):
a. Viraemia localise in the lung.
b. The virus persists in the environment.
c. Older birds are naturally resistant to disease.
d. Birds excrete large amounts of virus in the faeces.
e. Clinical disease is limited to ducklings over 3 month old.
T: b, c, d, e
F: a
Bovine rotavirus:
a. Clinical signs is more usual in calves which are more as 7 days old.
b. Clinical signs are malabsorption and diarrhoea.
c. Severe disease and death caused by secondary infection (E.coli, Salmonella).
d. Virus can survive for several days in faeces (main source of infection).
e. Remove animals with diarrhoea.
T: b, c, d, e
F: a
Viruses that cause viral gastroenteritis belong to next genera
a. Norovirus, Astrovirus, Pestivirus
b. Rotavirus, Orbivirus, Circovirus
c. Coronavirus, Rotavirus, Parvovirus
d. Orbivirus, Circovirus, Alphavirus
T: a, c
F: b, d
norovirus, astrovirus, pestivirus, coronavirus, rotavirus, parvovirus, caliciviruses, poxvirus
The following viruses are thought to cause gastroenteritis:
a. Enteroviruses.
b. Caliciviruses.
c. Bovine coronavirus.
d. Poxviruses.
e. Paramyxoviruses.
T: b, c, d
F: a, e
adenovirus, astrovirus, calicivirus, coronavirus, norovirus, parvovirus, pestivirus, poxvirus, rotavirus
