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Describe African Swine Fever in terms of: Etiology Species attacked Transmission and pathogenesis Clinical signs Diagnosis Treatment and control.

      

Describe African Swine Fever in terms of:
Etiology
Species attacked
Transmission and pathogenesis
Clinical signs
Diagnosis
Treatment and control.

  

Answers


Kavungya
etiology,
African swine fever virus

Species affected
Pig

Transmission and pathogenesis
-Direct contact between sick and infected
-Indirect transmission by
Ingestion of garbage containing infected meat (this is the primary means by which the virus spreads from country to country)
Biological vectors: soft ticks of the genus Ornithodoros
Fomites: premises, vehicles, implements, clothing

Clinical signs
Peracute
Death without advance warning typical Before death, recumbency and high fever may be seen
Acute (highly virulent
Fever (40.5-42.C) Animals huddle together, seeking shade and sometimes water Animals are reluctant to move
virus)
Signs of abdominal pain may occur, including arching of back, abnormal movements, and flank kicking Reddening of skin (white pigs) on tips of ears, tail, distal extremities, ventral aspects of chest and abdomen Anorexia, listlessness, cyanosis, and incoordination within 24-48 hr before death Increased pulse and respiratory rate Vomiting, diarrhea (sometimes bloody), and mucopurulent (mucus mixed with pus) eye and nasal discharges may occur Constipation may develop, with hard, small feces covered in blood and mucus Difficulty breathing, with possibly bloody froth at mouth and nostrils Duration of clinical signs generally short (2-7 days) but may be longer, and apparent recovery may be followed by relapse and death Death within 6-13 days (up to 20 days) Abortion may occur in pregnant sows Survivors are virus carriers for life In domestic swine, mortality rate often approaches 100% Pigs that do recover from acute infection are generally asymptomatic

Diagnosis
Clinical signs+ laboratory tests

Treatment and control
No treatment available
Outbreak control is by slaughter of all affected, thorough cleaning and disinfection
Kavungya answered the question on May 6, 2019 at 12:11


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