Picorna Flashcards
1
Q
Vaccinations are used in Europe for prevention of picornaviruses
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2
Q
Asymptomatic animals can carry Teschovirus
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3
Q
Teschovirus is resistant, it remains infective in the faeces for a few weeks
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4
Q
Teschen and Talfan disease are caused by different virulence variants of the same virus
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5
Q
Only pigs are susceptible to teschovirus encephalomyelitis
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6
Q
Teschovirus encephalomyelitis virus is shed in the faeces
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7
Q
Porcine teschovirus encephalomyelitis virus is shed in the faces
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8
Q
Asymptomatic pigs can shed the porcine teschovirus encephalomyelitis virus
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9
Q
Porcine teschovirus encephalomyelitis virus replicates in the gut
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10
Q
Porcine teschovirus encephalomyelitis is mainly caused by serotype 1 strains
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11
Q
A sporadic disease with weakness of hind legs or encephalomyelitis in piglets
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12
Q
Teschen disease virus can be present in pork meat
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13
Q
The virus of Teschen disease is shed in the faeces for several weeks after infection
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14
Q
Lameness is a typical clinical sign of Teschen disease
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15
Q
The Teschen disease virus infects the animals per os
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16
Q
Paralysis is a clinical sign of Teschen disease
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17
Q
Teschen disease can affect older pigs
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18
Q
Both young and adult pigs can be affected by Teschen disease
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19
Q
Teschen is caused by Picornavirus
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20
Q
Teschen disease can affect older piglets
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21
Q
Talfan disease can be seen in animals below 4 months of age
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22
Q
Talfan disease is a disease of pigs
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23
Q
Flaccid paralysis is a typical clinical sign of Talfan disease
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24
Q
Paralysis is a clinical sign of Talfan disease
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25
Talfan disease is caused by viruses of decreased virulence
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Talfan disease occurs in Europe, America and Australia
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The agent of Talfan disease replicates in the gut
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Swine vesicular disease virus can cause viraemia
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29
Swine vesicular disease virus can cause vesicles on the snout of pigs
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30
Swine vesicular disease virus replicates in the epithelium of the throat and tonsils
True?
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Only pigs are susceptible to swine vesicular disease virus
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Pigs are infected with swine vesicular disease virus per os
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Swine vesicular disease is present worldwide
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Swine vesicular disease virus can be shed by asymptomatic carriers
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Swine vesicular disease virus can infect only pigs
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Swine Vesicular Disease virus can cause infection per os
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Swine Vesicular Disease is derived from Coxsacki-B5
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Swine Vesicular Disease virus can replicate in CNS
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Swine Vesicular Disease was present in both Italy and Hong Kong
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Swine Vesicular Disease is similar in appearance to Foot and Mouth Disease
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Judging from the clinical signs, Swine Vesicular Disease cannot be differentiated from FMD
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Lameness can be a sign of Swine Vesicular Disease
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There is germinative spread in the case of avian encephalomyelitis
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Tremor is a typical clinical sign of avian encephalomyelitis
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Avian encephalomyelitis virus can infect chicken
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Clinical signs of avian encephalomyelitis can be seen in animals up to 5 weeks of age
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Avian encephalomyelitis virus is shed in the faeces
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Chickens are susceptible to avian encephalomyelitis virus
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Germinative infection is a way of spreading of avian encephalomyelitis virus
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Incubation time of Avian encephalomyelitis virus is 11 (9-10) days following PO infection
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Incubation time of Avian encephalomyelitis virus depends on the mode of infection
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Avian encephalomyelitis spreads both horizontally and via eggs
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Spasmodical paddling is a frequent clinical sign of duck hepatitis
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The resistance of duck hepatitis A virus is high
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Ducks are infected with the duck hepatitis A virus generally per os
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Duck hepatitis A virus is shed in the faeces
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Duck hepatitis A virus can be detected with PCR
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Clinical signs of Duck hepatitis are seen in 1-4 week old ducklings
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Per os infection is a common way of infection with duck hepatitis A virus
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Duck Viral Hepatitis can be caused by multiple virus spp./serotypes
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Duck Viral Hepatitis is primarily a disease of younger ducklings
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The primary replication site is the GI tract in Duck Viral Hepatitis
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Type 4 Duck Viral Hepatitis can infect older animals
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Pathogens of Duck Viral Hepatitis can infect older animals
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Encephalomyocarditis virus is shed in the faeces by infected animals
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Encephalomyocarditis virus infects animals mainly per os
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Encephalomyocarditis virus remains infective in the environment
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Encephalomyocarditis virus can cause per os infection
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Encephalomyocarditis virus can infect humans
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Rodents can maintain encephalomyocarditis infection
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Encephalomyocarditis virus can cause necrosis of the heart muscle
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Encephalomyocarditis is a zoonosis
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Encephalomyocarditis may be deadly for elephants
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FMD virus is shed by semen
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Dogs are susceptible to FMD
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Because of the high variability of FMD virus cross protection cannot be observed even the serotype
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Within the FMD serotypes, subtypes can be differentiated
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The sample from the FMD suspected animal should be submitted to lab cooled but not frozen
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The foot and mouth disease is classified into 7 serotypes
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FMD can be transmitted by frozen meat
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Vesicles of FMD can fully recover after immune response
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FMD causes the loss of hoof in swine
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Foot and mouth disease can be carried for long time in the hoof tissue.
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The SAT-1,2 and 3 serotypes of FMD virus are present in Africa and Arabia
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In humid cold environment, the FMD virus can retain its infectivity for weeks
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Even the vaccinated animals can carry and shed the FMD virus
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FMD induces lameness in sheep and oral vesicles in goats
The FMD virus can retain its infectivity in frozen milk for months T
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FMD virus is shed in milk
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The FMD virus can retain its infectivity in dried milk for months
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The FMD virus can retain its infectivity in frozen milk for months
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For laboratory tests foot and mouth disease samples should be submitted in buffered transport medium
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The foot and mouth disease virus can retain its infectivity for 40 days in manure
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The hedgehog is susceptible to FMD
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Foot and mouth disease can cause myocarditis in young animals
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Ruminants can carry foot and mouth disease virus for up to 3 years
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The Asia serotype of FMD virus is present in Turkey and in the Middle East
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24 hours after the inoculation of FMD virus into guinea pig paw pad vesicle formation can be observed
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FMD virus can be transmitted by feed
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Animals with foot and mouth disease shed the virus in the saliva
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Animals can be infected with foot and mouth disease by inhalation
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9 hours after infection foot and mouth disease virus can be shed by the infected animals
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Swine shed foot and mouth disease virus for a shorter time than cattle
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Pigs shed more foot and mouth disease virus than cattle
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The foot and mouth disease virus is very sensitive to acidic pH
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Foot and mouth disease virus can infect ruminants and pigs
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FMD is sporadic in Europe. T
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Resistance of FMD virus is high, in the environment it remains infectious for weeks.
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FMD virus frequently causes carditis is young animals
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The main signs of FMD are: fever, salivation, formation of vesicles and lameness.
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In Europe vaccines must not be used for prevention of FMD
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In sheep clinical signs of FMD are very mild, it is not easy to recognize
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For Europe Middle-East, Africa and Asia are the main danger to introduce FMD
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In young animal FMD virus frequently causes myocarditis
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FMD virus is highly contagious, spreads rapidly
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In endemically infected countries vaccines are also used in prevention of FMD
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O and A serotypes of FMD are mostly widespread in the world
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In sheep clinical signs of FMD are very mild
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About half of the countries of the world are presently infected with FMD
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FMD virus can get into Europe most easily from Turkey, Middle East and North- Africa
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FMD virus can cause severe myocarditis in young calves and piglets
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In infected countries inactivated vaccine are also used for prevention of FMD
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Pigs shed large amount of FMD virus with their saliva during the acute phase of the disease
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The main reservoirs of FMD virus are cattle and buffalo.
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FMD virus is carried in the tonsils, lymphatic tissues and hoof of the infected animal
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FMD erosions are characteristic with tattered edge and red base
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FMD virus retains its infectivity for more than a month in manure
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Swine shed about 1000-3000% higher FMD virus concentration comparing to ruminants
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FMD virus is shed by semen too
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Vaccinated animals can carry FMD virus.
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Comparing to cattle swine show milder vesicular symptoms
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Myocarditis can be a result of Foot and Mouth disease cases.
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Vesicles are often seen on the tongue of Foot and Mouth disease infected cattle
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Vaccination against Foot and Mouth disease results in type specific immunity
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Foot and Mouth disease virus can be shed from infected animals during the incubation time
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Foot and mouth disease virus may cause severe heart muscle damage in young calves
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Foot and mouth disease virus can replicate in epithelial and myocardial cells
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Foot and mouth disease virus is spread by infected saliva and vesicle fluids within the herd
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Recovery from foot and mouth disease induces type specific protection
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FMD has 7 known serotypes
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There are 3 subtypes SAT 1, 2, 3 in the SAT serotype
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FMD replicates primarily in the pharynx
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Vaccination is used against FMD
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Europe is currently free from FMD
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FMD replicates in the skin
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FMD cause skin lesions in bovine
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FMD cause skin signs in swine
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For prevention of FMD in Europe only State Vet steps are used.
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Inactivated vaccines can be used in endemically infected countries
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FMD is characteristic with fever, salivation and vesicle formation in the skin and mucous membranes
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