Difference between revisions of "African Swine Fever"
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m (Text replace - "Category:To_Do_-_Viruses" to "Category:To_Do_-_Clinical/Viruses") |
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| + | ==Clinical Signs== | ||
''Acute Virus (Africa)'' | ''Acute Virus (Africa)'' | ||
| − | + | *Nasal discharge, diarrhoea, reddening of the skin | |
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*Death within 7 days | *Death within 7 days | ||
*PM: widespread internal hemorrhage | *PM: widespread internal hemorrhage | ||
Revision as of 17:34, 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)
- PM: Petechial hemorrhages may be seen under kidney capsule
- Mortality: 30-70%
- Survivors may lose body condition, have skin ulcers and joint swelling
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)