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Exercise 2 and 4
- first report in United States 1987
(now Asia, Africa, Europe)
- in 1992 added to the IOE list of reportable diseases
- young pigs are more affected than older
- high mortality
- outbreak can last up to 4 months
- primary vectors: infected pig and contaminated semen
- aerosol (up to 9.1 km)
- contaminated needles, boots, transport vehicles, etc...
- experimental transport via insects (mosquitoes and house flies) has been reported
- people are not at risk, unless there is a blood contamination from viraemic pig
- infertility
- abortion
- stillbirths
- birth of weak piglets
- laboured breathing
- listlessness
- loss of apetite
- body discolaration
- blue ears
- anorexia
- agalactia
- lower immunity
- fever
- secondary infections
- currently there arent any 100% effective threatment programs
- cure symptoms: fever (aspirin), appetite stimulants (vit. B), bacterial infection (ATB)
- mixed result
- sanitation of transport vehicles
- protocols about personnel movement between farms
- proper isolation and acclimatization of new animals
- commercial vaccine (modified-live/killed)
- testing new animals on PSSR virus: PCR, virus isolation, fluid sampling
- strict quarantine, testing on PSSR
-depopulation with disinfection
- proper disposal of the carcasses
- vaccination
2
Exercise 2 and 4
4
2
6