calci-, astro-, hepe-, toga-, flavi-, corona-, arteri

Question 1

Caliciviruses have strong resistance to the environment.

T

F

Answer 1

True

Question 2

Feline calicivirus induces characteristic mucosal erosions on the tongue.

T

F

Answer 2

True

Question 3

Which statement is false?

a. The RHDV-1 infects rabbit and hare too b. The rabbit haemorrhagic disease vaccine is produced by experimental animal infection c. The rabbit haemorrhagic disease is a notifiable disease d. The RHDV-2 infects rabbit and hare too

Answer 3

d. The RHDV-2 infects rabbit and hare too

Question 4

Which statement is false

a. Feline calicivirus may cause locomotor disorders b. Noro- and Saporoviruses are communicated by food c. VES is an exclusively swine disease d. Lagoviruses infect only domestic rabbits

Answer 4

d. Lagoviruses infect only domestic rabbits

Question 5

Feline calicivirus may cause locomotor disorders

T

F

Answer 5

True

Question 6

The Feline Infectious Peritonitis is caused by a calicivirus

T

F

Answer 6

F

Question 7

The symmetry of caliciviruses is pleomorphic.

a. True b. False

Answer 7

b. False

Question 8

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 sign

Answer 8

a. Caliciviruses have strong resistance to the environment

Question 9

Astroviruses cause helicopter disease in chicken

F

T

Answer 9

F

Question 10

Astroviruses are good antigens.

T

F

Answer 10

T

Question 11

Astroviruses cause nephritis in chicken.

T

F

Answer 11

T

Question 12

Astroviruses

a. Cause gastroenteritis in mammals b. Have low resistance in environment c. Are euryxen pathogens d. Spread by the air

Answer 12

T

Question 13

Astroviruses

a. are sensitive to low pH. b. cause splenomegaly and hepatomegaly in chicken. c. may cause disease in human. d. are fish pathogens.

Answer 13

c. may cause disease in human.

Question 14

Avastroviruses cause anaemia in chicken

a. True b. False

Answer 14

b. False

Question 15

Avastroviruses cause the inflammation of bursa Fabricii in chicken

a. False b. True

Answer 15

a. False

(thats birna- )

Question 16

Orthohepevirus A is zoonotic.

T

F

Answer 16

T

Question 17

. Hepeviruses

a. are potentially zoonotic. b. cause respiratory infections. c. have weak resistance in the environment. d. are transmitted by insect vectors.

Answer 17

d. Zoonotic spread is common among hepeviruses of mammals

Question 18

Hepeviruses

a. Cause the inflammation of the gill in salmons b. Are sensitive to cold temperature c. Cause cell rounding in tissue culture d. Are only present in asia

Answer 18

b. Are sensitive to cold temperature

Question 19

Hepeviruses cause hepatomegaly and splenomegaly in chicken.

T

F

Answer 19

T

Question 20

Birds may be the reservoir of some togaviruses.

T

F

Answer 20

T

Question 21

Zoonotic viruses can be found in the

a. Birnaviridae family. b. Circoviridae family. c. Polyomaviridae family. d. Togaviridae family.

Answer 21

d. Togaviridae family.

Question 22

The yellow fever virus is classified into the Togaviridae family.

a. True b. False

Answer 22

b. False

thats the flavi-

Question 23

Toga- and flaviviruses

a. have -ssRNA genome. b. have helical capsid. c. are enveloped.

Answer 23

c. are enveloped.

Question 24

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

Answer 24

b. Togaviruses can be demonstrated by the HA tes

Question 25

Which statement is false? a. Bunyaviruses may be transmitted by arthropod vectors b. Togaviruses may be transmitted by arthropod vectors c. Arenaviruses may be transmitted by arthropod vectors d. Flaviviruses may be transmitted by arthropod vectors

Answer 25

c. Arenaviruses may be transmitted by arthropod vectors

Question 26

Togaviruses are resistant to the environmental conditions. T F

Answer 26

F

Question 27

Some togaviruses cause rash and fever in human. Certain togaviruses cause joint pain in human. T F

Answer 27

T

Question 28

The venezualan equine encephalitis is a notifiable disease a. True b. False

Answer 28

a. True

Question 29

Which statement is true? a. Flaviviruses can be identified by the characteristic CPE they cause b. Some flaviviruses are weak antigens c. Within flaviviridae genera cross-reactions are detected. d. Flaviviruses are resistant to environmental conditions

Answer 29

c. Within flaviviridae genera cross-reactions are detected.

Question 30

Flaviviruses can be inactivated by detergents T F

Answer 30

t

Question 31

Which Statement is false? A. Flaviviruses can be inactivated by detergents. B. Hepaciviruses are zoonotic C. Pegiviruses cause chronic hepatitis D. Pestiviruses are transmitted by mosquitoes.

Answer 31

C. Pegiviruses cause chronic hepatitis

Question 32

African swine fever is a Pestivirus. T F

Answer 32

FALSE

Question 33

Pestiviruses may cause damage to fetuses. T F

Answer 33

True

Question 34

Which statement is true? a. Flaviviruses have an icosahedral capsid b. Flaviviruses are resistant to detergents c. Flaviviruses cause intranuclear inclusion body formation in cell culture d. Flaviviruses have a segmented genome

Answer 34

a. Flaviviruses have an icosahedral capsid

Question 35

Which statement is false? a. Coronaviruses cause characteristic CPE in cell cultures b. Coronaviruses are host specific c. Within coronavirus genera we can detect serological cross reactions d. Host change is frequent in the case of coronaviruses

Answer 35

a. Coronaviruses cause characteristic CPE in cell cultures

Question 36

. Coronaviruses are sensitive to detergents. a. False b. True

Answer 36

b. True

Question 37

Corona- and arteriviruses a. cause intranuclear inclusion bodies. Only Arena + Bunya ambisense b. cause notifiable diseases. c. may infect fish. d. are transmitted by insect vectors

Answer 37

b. cause notifiable diseases

Question 38

Coronaviruses a. Propagate only in dividing cells b. Do not show serological cross reactions c. Synthesize subgenomic mRNAs for structural proteins d. Cause disease exclusively in birds

Answer 38

c. Synthesize subgenomic mRNAs for structural proteins

Question 39

Which statement is false? Corona viruses are sensitive to… a. Detergents b. Low ph c. High temperature d. UV irradiation

Answer 39

b. Low ph

Question 40

Deltacoronaviruses cause infection in birds and mammals T F

Answer 40

True

Question 41

Certain coronaviruses cause enteric disease. T F

Answer 41

True

Question 42

The Feline Infectious Peritonitis is caused by a coronavirus. T F

Answer 42

true

Question 43

which virus contains viruses with positive sense, singl stranded rna genome and helical caspid?

Answer 43

coronaviridae

Question 44

Arteriviruses a. Cause abortion and respiratory signs in horses b. Cause diarrhoea in chicken c. Have quasihelical symmetry d. Use reverse transcriptase during replication

Answer 44

a. Cause abortion and respiratory signs in horses

Question 45

Equine arteritis virus can cause persisting infection in a. Mares b. Stallions c. Foals d. Geldings

Answer 45

b. Stallions

Question 46

Arteriviruses a. Cause disase exclusively in birds b. Show serological cross-reactions within the family c. Propagate only in diving cells d. Synthesize subgenomic mRNAs for structural proteins

Answer 46

d. Synthesize subgenomic mRNAs for structural proteins

Question 47

. Arteriviruses cause disease mostly in birds. a. True b. False

Answer 47

b. False

Question 48

Bluecomb disease is caused by an arterivirus T F

Answer 48

False

Question 49

Arteriviruses are haemagglutinating viruses a. True b. False

Answer 49

b. False

Question 50

The PRRS virus causes a. Oedema and abortion in horse b. Respiratory symptoms and abortion in swine c. Haemorrhagic fever in monkey d. Elevation of the lactate-dehydrogenase level in mouse

Answer 50

b. Respiratory symptoms and abortion in swine