Entrance test 3 Flashcards
The Derzsy’s disease virus causes pneumonia.
f
The Derzsy’s disease virus can infect ducks
f
Ascites can be a clinical sign of Derzskys disease
t
Derszys disease is caused by a polyomavirus
F
The Derzsy’s disease virus causes conjunctivitis
F
The Derzsy’s disease virus causes tiger stripes on the heart
T
Typical clinical signs of the Derzsy’s disease are results of infection below 5 weeks of age
T
Infection below 5 weeks of age results in severe clinical signs of the Derzsy’s disease
T
The primary site of replication of Derzsy’s disease virus is the gut
T
The Derzsy’s disease virus may induce diarrhea in growing geese.
T
Derzsy ǵs disease virus can cross into the egg
T
Derzsy ǵs disease may occur both in geese and Muscovy chucks
T
Goose parvovirus can spread both horizontally and vertically
T
For prevention of goose parvovirus disease, both live attenuated and inactivated vaccines are used.
T
For prevention of Derzsy’s disease both live and inactivated vaccines are used.
T
Derzsy’s disease appears clinically most frequently in geese aged from one to four weeks.
T
Derzsy ǵs disease virus causes enteritis in growing geese
T
Derzsy ǵs disease virus does not infect the egg.
F
The Derzsy’s disease virus can infect ducks
F
The duck parvovirus can infect goose
need to double check
The reproduction of the circovirus continuous in the dividing cells.
t
The circovirus is too small so it’s a bad antigen
F
The circovirus is a good antigen
T
Circovirus infections are immune suppressive
T
Circovirus can easily be cultured in different homologous cell lines
F
Circoviruses can be cultured easily in many cell lines.
F
Resistance of circovirus is very low, in the environment they are inactivated within a day.
F
The resistance of Circoviruses is high, they remain infectious in the environment for several months.
T
Causes generalized lymphoid depletion.
T
Only causes the depletion of B-lymphocytes
F
Canine circoviruses are present worldwide.
F
Circovirus are very resistant viruses
T
The circovirus has circular RNA in its genome
F
Swine circovirus causes lesions in multiple organs and strong immunosuppression.
T
Porcine circovirus can be transmitted by mice and rats
T
Porcine circovirus vaccines are available both for sows and for piglets.
T
Detection of PCV2’s DNA is enough for the correct diagnosis.
F
Four species of swine circovirus were described.
T
The porcine circovirus 2 is proven to be immunosuppressive.
T
PCV2 detection in foetal myocardium is pathognomic value
T
Porcine circovirus replicates in the myocardium of the foetus
T
In pigs the porcine circovirus 2 can cause BFD
F
The porcine circovirus can replicate in the foetus
NOT ANSWERED
The clinical signs, pathological and histopathological examination suggest PCV2 induced disease
T
PCV2 can cause respiratory signs
T
The primer replication of PCV2 is in lymphoid tissues of the throat
T
PCV2 infection does not always cause clinical signs
T
Porcine circovirus 2 always causes clinical signs in pigs
F
Porcine circovirus 2 always causes clinical signs in cattle
F
There is no efficient vaccine against PCV2
F
The porcine circovirus can replicate in the foetus
T
Circovirus in pigs can be Subclinica
T
Porcine circoviruses are responsible for a variety of clinical conditions
T
Porcine circoviruses cannot be responsible for reproductive disorders
F
Porcine circoviruses are present worldwide
T
Porcine circovirus can be transmitted by mice and rats.
T
Porcine circoviruses cause severe haemorrhagic diseases in pigs
T
Porcine circoviruses are genetically and antigenically uniform
F
Porcine circoviruses may cause a variety of diseases
T
For prevention of Swine circovirus disease only general hygienic measures can be used.
F
Swine circovirus can cause retarded growth and strong immunosuppression.
t
Swine circovirus caused disease occurs worldwide, it is frequent
t
For prevention of swine circovirus disease, inactivated vaccine is available.
t
Swine circovirus causes only respiratory signs.
f
Swine circovirus may be shed in excretions for several months after recovery.
t
For prevention of Porcine circovirus disease vaccines are available.
T
The incubation period of Porcine circovirus caused disease is about 2-4 weeks.
T
Incubation period of porcine circovirus disease is short, some days
F
Porcine circovirus-2 causes clinical signs mainly after weaning.
T
Predisposing factors for Porcine Circovirus associated disease can be: Vaccines. The virus variant. Virus strain
T
Predisposing factors for Porcine Circovirus associated disease can be Food management.
F
PCV2 can cause: Enteric disorders. Disorders in the nervous system. Respiratory disease. Reproductions disorders.
T
Porcine circovirus-1 may damage the foetus.
F
Porcine circoviruses cannot be responsible for reproductive disorders.
F
Porcine circoviruses replicate in the heart of the foetus.
T
Porcine circovirus may cause inapparent infections
T
Circovirus can be responsible for the Porcine Respiratory Disease Complex.
T
Reproductive disorders caused by Porcine circoviruses are only significant in North America
F
Circovirus cause skin lesions in swine.
T
A clinical sign of PMWS can be a progressive weight loss
T
PMWS is a type 3 hypersensitivity
F
PMWS is a type 4 hypersensitivity
F
One of the most common pathological signs of PMWS is glomerulonephritis
F
Typical pathological finding of PMWS is enlarged mesenteric lymph nodes
T
Typical pathological finding of PMWS is pneumonia
NOT ANSWERED
A clinical sign of PMWS can be haemorrhages in the skin
F
In pigs the porcine circovirus 1 can cause PMWS
T
In pigs the porcine circovirus 2 can cause PDNS.
T
One of the most common pathological signs of PDNS is glomerulonephritis
T
PDNS is an allergic disease.
T
The appearance of PDNS is related to the good antigenicity of PCV2
T
PDNS is a type III hypersensitivity
T
PDNS is a type IV hypersensitivity
F
PDNS may develop without porcine circovirus 2
T
One of the most common clinical signs of PDNS is multifocal circular red skin disease
T
Porcine dermatitis nephropathy can only be caused by circoviruses
F
Porcine dermatitis and nephropathy syndrome are only caused by PCV-2
F
PDNS disease is an immunocomplex disease
T
PDNS is only caused by PCV-1.
F
PDNS does not occur in Hungary.
F
PDNS occurs primarily in the weeks following the selection/weaning.
T
PDNS is caused by both PCV-1 and PCV-2.
F
PDNS is not caused by PCV
F
PDNS has been widespread in Hungary in Hungary since 1998
T
PDNS is a rare infection causing clinical signs only in piglets before weaning.
F
PDNS is a frequent infection with clinical signs after weaning
T
Prevention of PDNS is with live attenuated vaccines
F
) Regarding PDNS, general preventative rules and recently inactivated or vector vaccination can be used.
T
In pigs the porcine circovirus 2 can cause BFD
F
Avian circovirus causes clinical signs similar to those seen in PMWS
T
Avian circovirus causes clinical signs similar to those seen in PDNS
F
The pigeon circovirus is not an important disease because the virus causes feather and beak deformitie
F
The beak and feather diseases causes typically neurological signs
F
In parrots porcine circovirus 2 causes the psittacine beak and feather disease
F
The beak and feather disease can be acute problem
T
Feather and beak deformities may appear after circovirus infection of geese and pigeons
T
Beak and feather disease lesions are sometimes obvious only after molting
T
Avian circovirus infections result high morbidity and low mortality.
T
Pigeon circoviruses are antigenically uniform
F
Pigeon circoviruses frequently appear in diseases together with other viruses and bacteria.
T
Circovirus in geese and ducks can cause retarded growth and feather formation disturbances.
T
Avian circoviruses do not cause clinical signs in domestic birds.
F
In ducks and geese, Avian circoviruses can cause retarded growth and
immunosuppression
T
Avian circoviruses can spread via breeder eggs.
T
Avian circoviruses do not cause disease in wild birds.
F
Avian circoviruses are species specific.
T
Avian circoviruses can infect many poultry species.
T
Avian circoviruses can cause retarded growth and immunosuppression
T
Inactivated vaccines are used against pigeon circovirus infections
F
Pigeon circovirus infections do not occur in Hungary, the disease is prevented by vaccination
F
Circoviruses can infect pigeons.
T
Vaccines are available for Pigeon Circoviruses.
F
Clinical signs of PBFDV (Psittacine Beak and Feather Disease Virus) are only seen at time of moulting.
F
The chicken infectious anaemia virus is also commonly detected in goose
F
Anaemia and haemorrhages are two important clinical signs of chicken anaemia.
T
The chicken infectious anaemia is a chicken disease up to 1 month of age
T
The chicken infectious anaemia virus causes only anaemia
F
The chicken anaemia virus does not replicate in lymphoid progenitors
F
There are vaccines available against chicken anaemia
T
The chicken infectious anaemia is a disease of hens
F
The chicken infectious anaemia causes clinical signs similar to those seen in PDNS
F
Vertical infectious is not possible in chicken infectious anaemia
F
Infection of day old chickens with the chicken anaemia virus leads to immune suppression
T
Chicken anaemia virus is transmitted both horizontally and vertically.
T
Atrophy of the thymus is a post mortem finding of Chicken Infectious Anaemia virus
T
Infectious Chicken anaemia virus can cause clinical signs only in layer hens.
F
Infectious chicken anaemia virus causes clinical signs in chicken of 1 to 4 weeks of age
T
For prevention of infectious chicken anaemia, live attenuated vaccine is available
T
Infection of day-old chickens with the chicken anaemia virus leads to immune suppression
T
Chicken anaemia virus infection can result in high mortality of chickens over 3 weeks of age.
F
In Chicken Infectious anaemia, most symptoms are observed in the first month
T
Chicken Infectious anaemia involves destruction of the lymphoid and myeloid cells.
T
Chicken Infectious anaemia virus induces apoptosis of activated T-cells
T
Pigeons can be infected by Chicken Infectious anaemia virus.
F
Chicken Infectious anaemia virus does not replicate in the thymus
F
Chicken Infectious anaemia in day old chickens causes a long-lasting
immunosuppression.
T
Chicken Infectious anaemia virus is a Gyrovirus.
T
Chicken anaemia virus infection can cause death of chickens below 3 weeks of age.
T
There is no vaccine available against papillomaviruses
T
The sarcoid is caused by bovine papillomavirus
T
In papillomavirus infection there is no viraemia
t
Treatment of papillomavirus can be effective with autovaccine.
t
Bovine papillomavirus can infect horse.
t
Bovine papillomavirus is malign
f
The sarcoid is caused by bovine papillomavirus
t
The sarcoid is caused by equine papillomavirus
F
The sarcoid is the disease of cattle
F
Papillomaviruses replicates in the kidney
F
Bovine papillomavirus can cause metastasis in horse
F
Papillomaviruses cause cervical cancer in dogs
F
The sarcoid is a disease of horse
T
Papillomaviruses need keratin for replication
T
Papillomavirus usually cause benign proliferation in epithelial cells
T
Papilloma lesions often have a cauliflower like appearance
T
Papilloma viruses usually cause local infections in epithelial cells.
T
Papillomaviruses usually cause benign proliferations in epithelial cells
T
Papilloma viruses, with some exceptions are species specific.
T
Papillomaviruses can be cultured in epithelial cell lines.
F
Papillomaviruses cause warts in the skin and mucous membranes
T
There is no viraemia in papillomavirus infection.
T
Treatment of haemorrhagic nephritis enteritis virus can be effective with vaccine against circovirus.
F
The haemorrhagic nephritis enteritis virus causes necrotizing haemorrhagic enteritis
T
The haemorrhagic nephritis enteritis virus causes glomerulonephritis
F
The mortality of the haemorrhagic nephritis virus depends on age
T
The primary replication of haemorrhagic nephritis enteritis virus is in small intestine
T
Tumours are caused by polyomavirus in mammals
T
Polyomavirus never infects mammals
F
Haemorrhagic enteritis is a polyomavirus
T
Goose haemorrhagic enteritis and nephritis cause death of goslings
T
Goose haemorrhagic enteritis and nephritis is frequent in ducks
F
Haemotrhagic enteritis and nephritis virus can be transmitted both vertically and horizontally
T
Haemorrhagic enteritis and nephritis virus replicates in the blood vessel endothelium
T
Haemorrhagic enteritis and nephritis of geese is only prevalent in France
F
Polyomavirus infects parrots
T
Haemorrhagic nephritis and enteritis of geese is caused by herpes viruses.
F
Haemorrhagic nephritis and enteritis of geese is present worldwide.
T
Goose polyomavirus causes haemorrhagic nephritis and enteritis in all age groups
F
Goose polyomavirus can cause haemorrhagic nephritis and enteritis
T
Goose polyomavirus caused disease clinically appears in young animals.
T
Polyomaviruses can cause neoplasm in rodents.
T
The resistance of the haemorrhagic nephritis virus is high.
T
The clinical signs of the haemorrhagic nephritis virus appear mainly at 3-10 weeks of age.
T
HNEG” (Hemorrhagic nephritis and enteritis of geese) is common in France
T
Haemorrhagic nephritis and enteritis of geese started in Hungary and spread with Derzsy’s disease hyperimmune serum.
T
Haemorrhagic nephritis and enteritis of geese causes high mortality between 2-10 weeks.
T
Muscovy ducks are also susceptible but remain symptomless for years with high titers
T
Haemorrhagic nephritis and enteritis of geese is caused by a Herpesvirus
F
Haemorrhagic nephritis and enteritis are present worldwide.
T
Haemorrhagic nephritis and enteritis of geese may spread both horizontally and vertically.
NOT ANSWERED
Adenoviruses are resistant to detergents and lipid solvents
T
Adenoviruses are resistant to detergents
T
Adenoviruses are enveloped viruses, therefore they are sensitive to detergents
F
Adenoviruses are arboviruses.
F
Adenoviruses are not too resistant enveloped viruses
F
Adenoviruses have mostly a broad host spectrum (euryxen pathogens)
F
Adenoviruses are poor antigens
F
There is no cross reactivity and cross protection among adenoviruses within genera
F
There are no serological cross-reactions between different adenovirus species.
F
Adenovirus infections always result in severe disease
F
lntranuclear inclusion bodies are frequently seen in adenovirus-infected tissues
T
In immunocompromised foals equine adenoviruses may cause severe respiratory disease
T
Several adenoviruses of domestic animals are zoonotic agents
F
Adenoviruses usually cause central nervous diseases with high lethality
F
Only attenuated vaccines can be applied for immunization against adenoviruses.
F
Crowded keeping conditions may facilitate the spread of adenoviruses in a population.
T
Adenoviruses infect only mammalian hosts.
F
