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8 Cards in this Set

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African Swine Fever (ASFV)
Symptoms/Classic signs
PerAcute - sudden death, no PM lesions
Acute -cyanotic/hyperemic skin lesions, Nasal discharge (bloody, mucoid, foamy). Die in 7 days, nearly 100% mortality.
PM lesions: bluish-purple to red discoloration of skin, perirenal edema, hydropericardium, petechial hemorrhages on kidney, spleen friable
SubAcute -Abortions, Mortality 30-70%. Survivors shed virus up to 6 weeks.
PM lesions: similar to acute, but less severe
Chronic -ulcers & reddened or raised necrotic skin foci. Lasts 2-5 months.
PM Lesions: emaciated. Focal areas of skin necrosis/ulcers, caseous pneumonia, pleural adhesions
Classical Swine Fever / Hog Cholera
Transmission
Direct & Indirect
Oral & Oronasal
Feeding Garbage
Fomites
Sow produce persistently infected piglets
Classical Swine Fever / Hog Cholera
Signs
Acute -goose stepping, hemorrhage or cyanosis of limbs. Usually die 10-20 days
SubAcute -Like acute, Recover or die in a month
Chronic -off & on symptoms. Sows produce mummified, stillborn or abort fetus, if live, they tend to have cerebellar hypoplasia, be carrier & die with in a year
Porcine Respiratory & Reproductive Syndrome (PRRS)
Transmission
Direct & Indirect
Aerosol, Nasal secretions, Saliva, Urine, Feces, Fomites
Porcine Respiratory & Reproductive Syndrome (PRRS)
Signs
Respiratory: labored breathing, sneezing, cynotic ears, pneumonia
Reproductive: Agalactia, still births, mummified fetus, thumping sound when suckle. Cross placenta if infected after 70 day of gestation
Swine Pox
How is it transmitted?
Arthropod Vector (Lice & Mange mites)
Pregnant sow -- > persistently infected piglets
Transmissible Gastroenteritis
Signs
Diarrhea, yellow-green, & watery
~100% mortality in <1 week olds
Older piglets rarely die, but are carrier
Transmissible Gastroenteritis
Transmission
Aerosol or contact with nasal secretions, milk or feces