Spongiform Encephalopathies Flashcards
Transmissible encephalopathies can be diagnosed by detecting infective prions in the brain
T
In the case of transmissible encephalopathies lesions can only be seen in the central nervous system
F
Prion diseases can be diagnosed by detecting the antibodies with ELISA.
T
There are major differences in the amino acid sequence of the normal and infective prions
F
Spongiform encephalopathies of animals occur worldwide except Australia and New Zealand
F
Prions can become infective prions as a result of a mutation
T
In the case of transmissible encephalopathies always degenerative lesions can be seen
T
In the case of transmissible encephalopathies meningoencephalitis is a typical postmortem lesion
F
Infective prions are resistant against the usual concentration of disinfectants
T
Agents of transmissible encephalopathies are most frequently detected with PCR
F
Weight loss is a clinical sign of Transmissible encephalopathies
T
ELISA can be used for the detection of infective prions in the brain
T
The folding of normal and the infective prion is different
T
Infective prions are resistant against proteases
T
Infective prions can survive 100 °C
T
Prions consist of protein and DNA
F
Chronic prion has no nucleic acid inside
T
Chronic prion is inactivated by boiling
F
Chronic prion form has other form than normal prions
T
Prions contain protein and DNA
F
Infection with infective prions generally happens per os
T
Transmissible encephalopathies are slow diseases
T
In the case of transmissible encephalopathies encephalitis can be seen in the grey material of the brain
F
Transmissible encephalopathies are caused by prions
T
PCR is used to the detection of prions
F
Prions always cause viraemia in the infected hosts
F
Prions are spreading in the host along the nerves
T
Normal prions are essential components of the cell membrane of the hosts
T
Infective prions replicate in the cytoplasm of the neurons
T
Infective prions are taken per os.
T
Encephalitis is typical in the case of transmissible encephalopathies
F
Protease breaks down prions
F
Transmissible encephalopathies are acute or per-acute diseases
F
Antibodies to prions cannot be detected in the case of transmissible encephalopathies
T
Allergy tests are widely used to diagnose transmissible encephalopathies
F
Scrapie has genetic predisposition
T
Scrapie prion is shed in discharges of the infected animals
T
The EU is free from Scrapie
F
Scrapie is a zoonotic disease
F
Atypical scrapie strains are not shed by the infected animals
T
Scrapie prion is detected with PCR
F
Scrapie is a disease of sheep, goats, and cattle
F
Scrapie is mainly seen in sheep between 1.5 and 5 years of age
T
Itching is a frequent sign of scrapie
T
Both typical and atypical scrapie strains can cause itching
F
Scrapie has more clinical signs in lambs than adult sheep
F
Certain genotypes of sheep are resistant against Scrapie prion
T
Scrapie is spreading with per os infection
T
Genetic predisposition is needed for scrapie to develop
T
Atypical scrapie strains can cause the same clinical signs as typical scrapie
F