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Created page with '*Commensal of the equine intestinal and reproductive tract *Pathogenesis and clinical signs: **Foals infected ''in utero'' or or after birth via the umbilicus **Infection at birt…'
*Commensal of the equine intestinal and reproductive tract
*Pathogenesis and clinical signs:
**Foals infected ''in utero'' or or after birth via the umbilicus
**Infection at birth causes severe enteritis and septicaemia within 24 hours, known as sleepy foal disease
**Foals become pyrexic and recumbent
**Death usually occurs within 1-2 days
**In foals that survive neonatal infection the condition progresses to cause joint infections and purulent nephritis, enteritis or pneumonia
**''A. equuli'' in [[Joints Inflammatory - Pathology#In Horses|arthritis of horses]]
**Abortion, septicaemia and [[Peritoneal Cavity Inflammatory - Pathology#In horses|peritonitis in horses]]
*Diagnosis:
**Specimens cultured on blood agar and MacConkey agar and incubated aerobically for 1-3 days
**Sticky colonies with variable haemolysis on blood agar
**Lactose-fermenting colonies on MacConkey agar
*Treatment and control:
**Antimicrobials ineffective unless early in course of disease
**Blood trasfusion and administration of colostrum
**Good hygiene
**Consider prophylactic antibiotics for new-born foals
**Bacteria susceptible to streptomycin, tetracyclines and ampicillin
*In other animals:
**Septicaemia in piglets
**Arthritis and enteritis in pigs
**Enteritis in calves
**RTX group cytotoxin present
[[Category:Actinobacillus_species]][[Category:Horse]]
*Pathogenesis and clinical signs:
**Foals infected ''in utero'' or or after birth via the umbilicus
**Infection at birth causes severe enteritis and septicaemia within 24 hours, known as sleepy foal disease
**Foals become pyrexic and recumbent
**Death usually occurs within 1-2 days
**In foals that survive neonatal infection the condition progresses to cause joint infections and purulent nephritis, enteritis or pneumonia
**''A. equuli'' in [[Joints Inflammatory - Pathology#In Horses|arthritis of horses]]
**Abortion, septicaemia and [[Peritoneal Cavity Inflammatory - Pathology#In horses|peritonitis in horses]]
*Diagnosis:
**Specimens cultured on blood agar and MacConkey agar and incubated aerobically for 1-3 days
**Sticky colonies with variable haemolysis on blood agar
**Lactose-fermenting colonies on MacConkey agar
*Treatment and control:
**Antimicrobials ineffective unless early in course of disease
**Blood trasfusion and administration of colostrum
**Good hygiene
**Consider prophylactic antibiotics for new-born foals
**Bacteria susceptible to streptomycin, tetracyclines and ampicillin
*In other animals:
**Septicaemia in piglets
**Arthritis and enteritis in pigs
**Enteritis in calves
**RTX group cytotoxin present
[[Category:Actinobacillus_species]][[Category:Horse]]