Specific Virology PQs

If a virus is enveloped

It's sensitive to detergents

All viruses with helical

Have envelopes

Influenza

A: Birds

B: Humans

C: Humans

D: Pig + cow

Retroviruses cause

Cell associated infections

Which statement is false

1. Ether inactivates suipoxvirus

2. Ether inactivates capripoxvirus

3. Ether inactivates parvopoxvirus

4. Ether inactivates lepopoxvirus

Ether inactivates the suipoxviruses

Astroviruses

May cause disease in human

The classical swine fever virus is transmitted by tick (T/F)

False, direct contact btw pigs

The parrot proventricular dilatation disease virus belongs to

Bornaviridae

The rhabdovirus genome is segmented (T/F)

False,

Which viruses are segmented?

Reo + birnaviruses.

The arenavirus virion contains ribosomes (T/F)

True

The rabies virus

Doesnt cause viraemia .

Does not belong to Simplexvirus genus:

a . Simian herpes ( B ) virus .

b . Bovine herpesmamillitis virus .

c . Aujeszky's disease virus .

d . Human genital herpes virus .

Aujeszky's disease virus .

Picornaviruses use reverse transcriptase enzyme for their multiplication (T/F)

False

Prions are resistant to heat treatment (T/F)

True

Reo- and birnaviruses...

Have a segmented genome .

Polyoma- and papillomaviruses

may induce tumour formation .

Marburg virus

Bats

Adenoviruses

Cause respiratory + enteric diseases .

Coronaviruses are sensitive to detergents (T/F)

True

The genome of astroviruses is ambisense (T/F)

False, +ssRNA

Filoviruses have helical capsid (T/F)

True

Zoonotic viruses can be found in

Togaviridae

Corona- and arteriviruses

Cause notifible diseases

The yellow fever virus is classified into the Togaviridae family (T/F)

False, Flaviviridae

Which statement is true ?

1. Mad cow syndrome is a notifiable disease .

2. Prions cause rash and fever

3. All bacteriophages have binal symmetry

4. Viroids consist only of proteins .

Mad cow is notifiable

Toga- and flaviviruses

Are enveloped .

Avulaviruses cause disease in birds (T/F)

True

The variola virus is present worldwide (T/F)

False

Arteriviruses cause disease mostly in birds (T/F)

False, horses

Some reoviruses are transmitted by insect vectors (T/F)

True

Which herpes virus uses reverse transcriptase for its multiplication ?

Hepatitis B

The symmetry of caliciviruses is pleomorphic (T/F)

False

Autovaccines are used against papillomaviruses (T/F)

True

The bornavirus genome is ambisense (T/F)

False

Hepeviruses..

are potentially zoonotic

The canine adenovirus type 1 causes encephalitis in fox (T/F)

True

34. Which statement is true ?

1. Orthomyxoviruses infect only terrestrial animals .

2. The mutation rate of orthomyxoviruses is very low .

3. Some orthomyxoviruses are arboviruses .

4. Orthomyxoviruses cause myxomatosis in rabbits .

Some orthomyxoviruses are arboviruses .

Polyomaviruses can multiply only in dividing cells (T/F)

False, keratinised cells

Influenza B and C viruses cause disease mainly in human (T/F)

True

Parvo- and circoviruses cannot be propagated in vitro (T/F)

False

The African swine fever virus causes intracytoplasmic inclusion bodies (T/F)

True

Picorna- and caliciviruses antigens

Good antigens

In the Picornavirales order we can find honeybee pathogen viruses (T/F)

True

The turkey herpesvirus induces cross - protection against Marek's disease (T/F)

True

Crimean - Congo haemorrhagic fever virus transmitted by

Ticks

Parvo- and circoviruses..

Have good resistance to the environment .

Hepadnaviruses have weak resistance in the environment (T/F)

True

Paramyxoviruses....

are enveloped .

Some birnaviruses can cause disease in fish (T/F)

True

The Epstein - Barr virus is a retrovirus (T/F)

False, herpes

Duck hepatis is caused by a herpes virus (T/F)

False, Avihepatovirus

Adenoviruses...

Cause tumour formation due to the inhibition of apoptosis

Hepatitis A virus is transmitted by sexual contact (T/F)

True

Please , mark which statement is true !

a . Bornaviruses cause encephalitis in horses

b . Mammalian bornaviruses are endemic worldwide

c . The resevoirs of bornaviruses are different parrot species

d . Bornaviruses are only pathogenic in mammals

Bornaviruses cause encephalitis in horses

Which statement is false ?

a . Paramyxoviruses cause haemadorption

b . Paramyxoviruses cause intracytoplasmic inclusion bodies

C. Paramyxoviruses cause syncytium-formation

D. Paramyxoviruses cause intracellular inclusion bodies

Paramyxoviruses cause intracellular inclusion bodies

Which statement is true ?

a . In lytic infection phage replication happens

b . The lysogen infection results in phage resistance in the bacteria

c . Phage induction means gene transfer between bacteria

d . The temperate phage is a thermosensitive mutant

In lytic infection phage replication happens

In an acidic environment , the hepatitis B virus can retain its infectivity for a long time (T/F)

False

Herpesviruses can be detected by haemagluttination test

False

Filoviruses are present mainly in?

Mainly present in Africa

Influenzaviruses may cause disease with high mortality in which species?

In horses

The feline infectious peritonitis is caused by a calicivirus (T/F)

False, coronavirus

Hepadnaviruses

Use reverse transciptase for replication

Smallpox has been eradicated from earth (T/F)

True

Retrovirus capsid symmetry...

Can be polyhedral, conical or rodshaped

Nipah virus causes encephalitis in which species?

Swine and human

Herpesvirus is the causative agent of?

Chicken pox

Which statement is true ?

a . Parapoxviruses are good antigens

b . Capripoxviruses cause notifiable disease c . Leporipoxviruses cause the appearance of oral scabs

d . Avipoxviruses are zoonotic

Capripoxviruses cause notifiable disease

Retroviruses

a . Cause self - limiting , acute infections

b . Cause food borne infections

c . Cause immunosuppression

d . Cause disease only in mammals

Cause immunosuppression

Please mark , which statement is false, Adenoviruses ...

a . Cause usually pneumoenteritis in cattle and sheep

b . Cause encephalitis in chicken and feather development problems in parrots

c . Cause hepatitis and respiratory disease in dogs

d . Cause haemorrhagic enteritis in turkey and marble spleen disease in pheasants

Cause encephalitis in chicken and feather development problems in parrots

Astroviruses cause?

Gastroenteritis in mammals

Polyomaviruses are haemagglutinating viruses (T/F)

True

Picornaviruses

Express their viral proteins via subgenomial mRNA synthesis

The genome of orthomyoxoviruses is

Segmented

Adenoviruses can be detected by?

VN test

Which statement is true ?

a . Viroids are enveloped particles

b . Viroids can cause asymptomatic infections

c . Viroids consist of only nucleic acid

d . Viroids contain structural proteins

Viroids consist of only nucleic acid

The host range of Orthoreoviruses is euryxen (T/F)

True

74. Which statement is true ?

a . The western equine encephalitis virus is transmitted from human to human

b . The American equine encephalitis viruses are transmitted by ticks .

c . The eastern equine encephalitis virus is maintained by birds

d. The venezualan equine encephalitis is maintained by birds

The eastern equine encephalitis virus is maintained by birds

Which statement is true

a . Nairoviruses are zoonotic

b . All hantaviruses are arboviruses

c . The genome of peribunyaviruses consists of two segments of positive - sense single - stranded RNA

d . The reservoirs of phenuiviruses are bats

All hantaviruses are arboviruses

Arteriviruses cause what?

Cause abortion and respiratory signs in horses

Which statement is true !

a . Bornaviruses have a narrow host range

b . Avian bornaviruses are highly resistant in the environment

c . The borna disease virus is spread by bats

d . Bornaviruses can infect only humans

Avian bornaviruses are highly resistant in the environment

The canine distemper is caused by a morbillivirus (T/F)

True

Scrapie causes?

Causes itching in sheep

Which statement is true ?

a . Syntytium is a characteristic CPE of alphaherpesviruses

b . The replication time of betaherpesviruses is less than 9 hours

c . Herpesviruses induce cytoplasmic inclusion bodies

d . Gammaherpesviruses cause latency in salivary glands

Gammaherpesviruses cause latency in salivary glands

Equine arteritis virus can cause persisting infection in?

Stallions

Retroviruses antigens

Are good antigens

Viroids spread mechanically (T/F)

True

PRRS virus causes

Respiratory symptoms and abortion in swine

Parvoviruses may cause

abortion

Arenaviruses have an ambisnese , -ssRNA genome (T/F)

True

Venezualan equine encephalitis is a notifiable disease (T/F)

True

Which statement is true ?

a . Eastern equine encephalitis is present in asia

b . Togaviruses can be demonstrated by the HA test

c . Certain togaviruses cause respiratory disease

d . Togaviruses are weak antigens

Togaviruses can be demonstrated by the HA test

Astroviruses antigens

Are good antigens

Antigenicity of influenza viruses is determined by the HA and NA genes (T/F)

True

Which statement is true !

a . The rabies virus is a weak antigen

b . The most common source of human rabies cases is the bite from rabid cats

e . Certain animal species are orally vaccinated against rabies

d . Rabies cause asymptomatic infection in many mammalian hosts

Certain animal species are orally vaccinated against rabies

The primary host of Spumaviruses are the pumas = mountain lions , cougars(T/F)

False

94. Which statement is true ?

a . Caliciviruses have strong resistance to the environment

b . Calicivirusers are weak antigens

c . Caliciviruses can be detected by haemagglutination test

d . Caliciviruses cause CNS signs

Caliciviruses have strong resistance to the environment

Which statement is true ? .

A. The peste des petitis ruminants ' virus causes fever and mucosal erosions

b . Rinderpest is present worldwide

c . Measles virus causes encephalitis in human

d . Distemper virus infects pet cats too

a . The peste des petitis ruminants ' virus causes fever and mucosal erosions

The spring viraemia of carp virus is a thermosensitive mutant (T/F)

True

Which statement is true ?

a . Molluscipoxviruses infect molluscs

b . Yatapoxiviruses infect bats

c . Suipoxviruses are vectored by mosquitoes

d . Leporipoxviruses induce tumour formation

Leporipoxviruses induce tumour formation