Classical Swine Fever CSF

1
Classical Swine Fever (CSF)

• Host - contagious febrile disease of
• pigs
• Agent - Pestivirus
• Spread - ingestion, inhalation, genital
• infection, transplacental infection of
  fetuses
• Clinical signs - fever, purple discoloration
• of abdominal skin, necrosis of the tips of
  extremities, lack of coordination,
• tremors, convulsions, circling, death

2
African Swine Fever (ASF)

• Host - Highly contagious viral disease of pigs
  (domestic and feral) replicates in soft ticks
  (Ornithodoros spp)
• Agent - Asfivirus
• Spread - Direct and indirect contact, vectors
• Clinical signs - Fever, reddening or darkening
• of the skin (particularly ears and snout),
  conjunctivitis, labored breathing, coughing,
  abortion, weakness, diarrhea, death

3
Swine Vesicular Disease (SVD)

• Host - Typically a transient disease of pigs
• Agent - Enterovirus
• Spread - Direct, indirect, fomites
• Clinical signs - Fever, lameness, vesicles
• on the snout, feet, mouth, tongue and
• teats young animals are more severely
• affected
• Recovery within 1 to 3 weeks little to no
• mortality

4
Foot and Mouth Disease (FMD)

• Host - Highly contagious viral diseases
• primarily cloven-hoofed domestic and
• feral animals
• Agent - Apthovirus
• Spread - Direct, aerosol, indirect, fomites
• Clinical signs - Fever, vesicular lesions
• and subsequent erosions, drop in milk
  production, unthriftiness

5
Bovine Spongiform Encephalopathy (BSE)

• Host - Cattle, sheep, goats (exotic and
• domestic cats), other species
• Agent - Prions (?)
• Spread - Contaminated feed/oral
• Clinical signs - Chronic, afebrile
• degenerative affecting CNS resulting
• in death
• SRMs-brain, nervous tissue, bone
• marrow, spinal cord distal ileum

6
Highly Pathogenic Avian Influenza H5N1 (HPAI H5N1)

• Host - Contagious viral disease of poultry
• and other birds also affects humans
• Agent - Influenza virus type A
• Highly pathogenic forms - H groups 5 and 7
• Spread - Direct and indirect contact
• Clinical signs - Sudden death, drop in egg
  production, depression, nasal and ocular
  discharge, swollen cyanotic of comb/wattles,
  nervous signs

7
Exotic Newcastle Disease (END)

• Host - Highly contagious viral disease
• affecting poultry and other bird species
• Host - Paramyxovirus PMV-1 (Avulavirus)
• Velogenic (viscerotropic and neurotropic)
• Spread - Direct and indirect (aerosol)
• Clinical signs - Sudden death, edema of
• head, loss of appetite, coughing, dsypnea,
  nervous signs, paralysis, twisted
• neck, drop in egg production