PQS - Atrophic rhinitis of swine✅ Flashcards
Europe is free from atrophic rhinitis
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The infection is widespread, BUT the clinical form is getting rare
Dermonecrotoxin producing Pasteurella multocida can cause irreversible lesions in the nose of pigs
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The dermonecrotoxin of Pasteurella multocida damages the osteoclast cells
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The toxin damages the osteoblast cells, which are responsible for building the bones
!! The osteoclast are responsible for the decomposition !!
Dermonecrotoxin producing Pasteurella multocida can cause irreversible lesions in the nose of pigs
T
Toxoid vaccines are used for the prevention of atrophic rhinitis
T
The block of the lachrymal channel is a clinical sign of atrophic rhinitis
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The turbinate bones can be absorbed in the case of atrophic rhinitis
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Overcrowding can predispose pigs to atrophic rhinitis
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The maxilla can be shortened in the case of atrophic rhinitis.
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Causing wrinkles on the nose
The most severe clinical signs of atrophic rhinitis can be seen in suckling piglet
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Seen in pigs over 3 months of age
Atrophic rhinitis can be prevented by vaccinating the pregnant sows
T
The lesions of atrophic rhinitis are examined after sawing the nose behind the first premolar
teeth
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Clinical signs of a atrophic rhinitis appear if piglets are infected in the first few weeks of their life
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If infected later, there is asymptomatic and bacterial carriage only
The mortality and the economic impact of atrophic rhinitis are high
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Generally not lethal
The endotoxin of the agent is responsible for the clinical signs and lesions of atrophic rhinitis
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Exotoxins are
Atrophic rhinitis in fattening pigs is caused by Bordetella bronchiseptica
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In 4-6 months old pigs B. bronchiseptica strains cause severe pneumonia
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Progressive form is seen in 3 month olds and older
Dermonectotoxin is an important virulence factor of B. bronchiseptica
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Atrophic rhinitis cannot be prevented with vaccination
F
Block of the lacrimal channel is a typical sign of atrophic rhinitis
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The dermonecrotoxin producing Pasteurella multocida strains are responsible for the severe
lesions of atrophic rhinitis
T
The dermonecrotoxin of P. multocida inhibits the activity of the osteoclast cells
F
Inhibits the osteblasts
Atrophic rhinitis can be prevented by vaccinating the day-old piglets
F
Vaccinating the pregnant sows, in US they vaccinate the piglet within the first week of life