PRRS Flashcards
1
Q
which type or PRRS is present in the UK
A
type 1
2
Q
whats does PRRS stand for?
A
porcine respiratory and reproductive syndrome
3
Q
what family of viruses cause PRRS?
A
arterivirus
4
Q
how is it transmitted?
A
inhaled
ingested
coitus
needles
5
Q
where does PRRS replicated
A
pulm mucosa and alveolar mphages
via lymph system –> viraemia
6
Q
pathogenesis
A
repro - aborts at d100 (80%), unless infected BEFORE d40 (cant cross placenta then) - weak neonates, 50% mortality, mummified (20% remaining) - boar - semen changes resp - 2ry inf - dyspnoea - boar - fever
7
Q
what type of pneumonia does PRRS lead to?
A
interstitial pneumonia
8
Q
what 2ry infection exacerbates the severity and duration
A
Enzootic pneumonia (mycoplasma haemophilus)
9
Q
how is PRRS prevented?
A
live vaccination - porcillis. reduces signs not dz and can be transmitted!
