Difference between revisions of "African Swine Fever"
Jump to navigation
Jump to search
| Line 6: | Line 6: | ||
''Subacute Virus (Europe)'' | ''Subacute Virus (Europe)'' | ||
| − | |||
*Mortality: 30-70% | *Mortality: 30-70% | ||
*Survivors may lose body condition, have skin ulcers and joint swelling | *Survivors may lose body condition, have skin ulcers and joint swelling | ||
| + | *PM: Petechial hemorrhages may be seen under kidney capsule | ||
=Epidemiology= | =Epidemiology= | ||
Revision as of 17:35, 18 October 2010
Clinical Signs
Acute Virus (Africa)
- Nasal discharge, diarrhoea, reddening of the skin
- Death within 7 days
- PM: widespread internal hemorrhage
Subacute Virus (Europe)
- Mortality: 30-70%
- Survivors may lose body condition, have skin ulcers and joint swelling
- PM: Petechial hemorrhages may be seen under kidney capsule
Epidemiology
- Can persist on infected premises for months
- Subacute recovered pigs become antibody-positive carriers
- Transfer:
- Africa: vertical transfer between soft ticks
- Europe/Africa: direct contact with carrier pigs, aerosol, infected swill, etc.
Diagnosis
- Mortalities with widespread hemorrhage, particularly in lymph nodes
- Test to distinguish from Classical Swine Fever and Porcine Circoviruses
- Immunofluorescence
- PCR
Control
- No vaccine is available
Prevention:
- Boiling swill
- Isolation of sick pigs, domestic pigs from wild pigs
- Keep pigs on concrete, not soil (to lessen tick contact)