Midterm 2 part 1 chapter II Flashcards
Swine Vesicular Disease virus can infect swine and ruminants
false
Swine Vesicular Disease virus can cause infection per os
true
Swine Vesicular Disease virus does not cause viraemia, only local lesions can be seen
false
Swine Vesicular Disease virus can infect humans
True !
Duck hepatitis A virus is shed in the feces
true
Duck hepatitis A virus can cause germinative infection
false
Clinical signs of duck hepatitis can be seen mainly in laying ducks
false
Duck hepatitis A virus can be detected with PCR
true
For Europe Middle-East, Africa and Asia are the main danger to introduce FMD
true
In young animal FMD virus frequently causes myocarditis
true
FMD virus is highly contagious, spreads rapidly
true
In endemically infected countries vaccines are also used in prevention of FMD
true
O and A serotypes of FMD are mostly widespread in the world
true
In sheep clinical signs of FMD are very mild
true
The resistance of FMD virus is rather low, in the environment it is inactivated within days
false
About half of the countries of the world are presently infected with FMD
true
Clinical signs of the Vesicular Exanthema of swine can be similar to the Foot and Mouth disease
true
Oral erosions are signs of Feline calicivirus infection
true
Virulent strains of the Feline calicivirus can cause systemic disease with mortality
true
The Rabbit Hemorrhagic Disease is present only in Australia
false
Reoviruses are sensitive to lipid solvents and detergents
false
The Bluetongue virus is vectored by midges/gnats
true
Lameness and abortions are signs of Bluetongue
true
The Epizootic Hemorrhagic Disease is present in the USA in deer
true
The natural reservoirs of the African Horse Sickness virus are mainly zebras
true
Encephalitis is the most frequent sign of the African Horse Sickness
false
Rotaviruses are shed in the feces in high titers
true
Rotaviruses usually cause enteritis in young (1-2 weeks old)
true
Orthoreoviruses can cause pneumoenteritis in calves
true
Horses usually develop lethal hemorrhagic enteritis in Orthoreovirus
false
Infection of adult birds with Orthoreoviruses usually remains subclinical
true
Avian orthoreoviruses can cause necrotic and inflammatory foci in visceral organs
true
Very virulent strains of the Infectious Bursal Disease virus (IBDV) may cause disease in chicken with maternally derived antibodies too
true
IBDV does not cause disease in adult chicken (over 2 months of age)
true
Fever, diarrhea and anemia are signs of the Infectious Bursal disease
true
Vaccines provide high level of protection against all IBDV
false
African Swine Fever virus has low resistance
false
African Swine Fever virus can infect pigs and wild boars
true
The clinical signs of African Swine Fever are more severe in wild boars than in farmed pigs
false
There is a widespread vaccination in endemic areas to prevent African Swine Fever
false
Talfan disease occurs in Europe, Australia and America
true
Pigs and ruminants are susceptible to the agent of Talfan disease
false
The agent of Talfan disease replicates in the gut
true
The agent of Talfan disease is shed lifelong after infections
false
Germinative infection is the primary way of infection with Duck hepatitis A Virus
false
Clinical signs of Duck hepatitis are seen in 1-4 week old ducklings
true
Spasmodical paddling is a typical sign of Duck hepatit
true
There are no vaccines for the prevention of Duck hepatitis
false
Resistance of FMD virus is low, in the environment, they are inactivated within days
false
FMD virus can get into Europe most easily from Turkey, Middle East and North-Africa
true
FMD virus can cause severe myocarditis in young calves and piglets
true
In infected countries inactivated vaccine are also used for prevention of FMDS
true
Clinical signs of FMD in sheep are very mild
true
Pigs shed large amount of FMD virus with their saliva during the acute phase of the disease
true
O and A type of FMD viruses are most widely distributed
true
The main clinical signs of FMD are: fever, salivation, vesicles and lameness
true
Cat queens frequently abort in the acute phase of Feline calicivirus
false
Some variants of Feline calicivirus may escape vaccine induced protection
true
Rabbit Hemorrhagic Disease virus usually causes death in 1-3 weeks old rabbits
false
There are no vaccines available against Rabbit Hemorrhagic Disease
false
Bluetongue is present only in tropic areas
false
Bluetongue virus is typically vectored by ticks
false
Endothelial damages are the most important causes of the clinical signs of Bluetongue
true
Sheep are less sensitive to Blutongue than swine
false
Epizootic hemorrhagic disease was described only in Australia so far
false
Occasionally carnivores may get infected with African Horse Sickness virus
true
Zebras are more resistant to African Horse Sickness virus than horses
true
Immunized horses may develop a chronic, febrile form of the African Horse Sickness
true
Rotaviruses infect only mammalian hosts
false
Avian orthoreoviruses usually cause disease in adult birds
false
Tenosynovitis is one of the most typical manifestations of Avian orthoreovirus infections
true
Avian orthoreoviruses may cause necrotic foci in the visceral organs of birds
true
The Infectious Bursal Disease virus (IBDV) is very sensitive to detergents
false
IBDV serotype 2 is used for immunization of chicken against Infectious Bursal Disease
false
Clinical manifestations of infectious bursal disease are seen mainly in chickens between the age of 3 and 6 weeks
true
Moderately attenuated (“hot”) IBDV vaccines are used for the immunization of young chicken without yolk immunity
false
All known strains of the Classical Swine Fever virus are of highly virulence
false
CSFV may cause reproductive disorders
true
Hemorrhages are the most typical lesions of acute Classical Swine Fever
true
The Classical Swine Fever may appear in a milder form in wild boar than in domestic swine
true
CSFV may survive in frozen meat for months
true
Shedding of CSFV begins 1 to 2 days after the appearance of clinical signs
false
CSFV can cause central nervous signs only in suckling piglets
false
Erysipelas and Porcine circovirus 2 infections may cause clinical signs and pathology
lesions similar to Classical Swine Fever
true
Abortions and fetal malformations are the most typical signs of Akabane disease
true
The acute signs of Schmallenberg virus infection in cattle are fever and reduced milk production
true
Certain European mosquito species are competent vectors of Rift Valley fever virus
true
Rift Valley fever may cause high lethality in young ruminants
true
In Europe the ticks are the most important means in the transmission of the ASF virus
false
In case of ASF infection viremia can last for months
true
Infection by moderately virulent ASF virus results in high mortality of sow
true
In acute ASF the leading pathological lesion is haemorrhage
true
FMD virus can be transferred by frozen meat
true
FMD virus cannot be isolated in cell culture
false
FMD virus is genetically and serologically uniform
false
The main reservoirs of FMD virus are cattle and buffalo
true
FMD virus is carried in the tonsils, lymphatic tissues and hoof of the infected animal
true
FMD erosions are characteristic with tattered edge and red base
true
FMD infection in young animals leads to myocarditis
true
Vaccination against FMD can prevent the infection
true? (only in endemic countries, in other countries slaughter of all animals, and burning of carcass)
