PQS - Picornaviruses (FMD) Flashcards
FMD is a chronic disease
F
FMD spreads slowly within the herd
F
FMD virus is shed by semen
T
Shed through all bodily fluids
Dogs are susceptible to FMD
T
Foot and mouth disease is serologically uniform
F
Have 7 different serotypes
Foot and mouth disease virus is uniform, there are no serotype or subtypes of it
F
Because of the high variability of FMD virus cross protection cannot be observed even within
the serotype
T
Within the FMD serotypes, subtypes can be differentiated
T
The sample from the FMD suspected animal should be submitted to lab cooled but not frozen
T
FMD ulcers are usually sharp edged and regular round shaped
F
Tattered edge + red base
True for bovine viral diarrhoea
The foot and mouth disease is classified into 7 serotypes
T
A, O, C, SAT 1-3, ASIA 1
The primary replication site for FMD is the tongue mucosa
F
pharyngeal and laryngeal mucousae
FMD can be transmitted by frozen meat
T
The peracute form of FMD causes severe haemorrhages and death by shock
F
The chronic form of FMD means arthritis
F
There is no chronic form
FMD is transmitted by insect vectors
F
Direct contact with bodily fluids
Vesicles of FMD can fully recover after immune response
T
FMD causes the loss of hoof in swine
T
If the keratine layer is damaged
Foot and mouth disease can be carried for long time in the hoof tissue
T
The SAT-1,2 and 3 serotypes of FMD virus are present in Africa and Arabia
T
In humid cold environment, the FMD virus can retain its infectivity for weeks
T
Even the vaccinated animals can carry and shed the FMD virus
T
The main host (reservoir) of foot and mouth disease virus is swine
F
Cattle and Buffalo
FMD induces lameness in sheep and oral vesicles in goats
T
FMD virus is shed in milk
T
In all bodily fluids
The FMD virus can retain its infectivity in dried milk for months
T
The FMD virus can retain its infectivity in frozen milk for months
T
There are no neutralizing antibodies produced against foot and mouth disease virus
F
VP1 = neutralising antibody
For laboratory tests foot and mouth disease samples should be submitted in buffered
transport medium
T
For laboratory tests FMD samples should be submitted frozen
F
Never frozen!! chilled or on ice
Within the FMD serotypes, subtypes can be differentiated
T
The resistance of foot and mouth disease virus is low
F
Non-enveloepd virus = high resistance
The foot and mouth disease virus can retain its infectivity for 40 days in manure
T
In Europe supportive therapy is applied in the treatment of FMD
F
Europe = free of FMD
Frothy and sticky nasal discharge is the characteristic sign of FMD
F
The hedgehog is susceptible to FMD
T
Every even-toed ungulate
Because of high variability of FMD virus cross protection cannot be observed even within the serotype
T
All serotypes of foot and mouth disease can be detected worldwide
F
O and A = Worldwide
Foot and mouth disease can cause myocarditis in young animals
T
Also in dogs
Ruminants can carry foot and mouth disease virus for up to 3 years
T
0.5 - 3 years
The Asia serotype of FMD virus is present in Turkey and in the Middle East
T
Present in: Asia, Turkey and Middle East
The FMD virus is enveloped
F
FMD virus cannot be propagated in cell culture
F
FMD virus cannot be isolated in cell culture
F
24 hours after the inoculation of FMD virus into guinea pig paw pad vesicle formation can be
observed
T
The FMD mortality is nearly 100%
F
It is low, a bit higher in young animals
The mortality of foot and mouth disease is very high in all age groups
F
The FMD suspected sample should be sent to lab by post (in mail)
F
FMD virus can be transmitted by feed
T
Animals with foot and mouth disease shed the virus in the saliva
T
All bodily fluids
Animals can be infected with foot and mouth disease by inhalation
T
Per os, and air-borne
The primary replication sites of foot and mouth disease are the lymph nodes
F
In laryngeal and pharyngeal mucosa
The primary replication sites of foot and mouth disease is the bone marrow
F