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Alphaherpesvirinae
Infectious Laryngotracheitis (ILT)
Question | Answer |
---|---|
What are two other names for this disease? | Infectious tracheitis or Fowl Diphtheria |
How is this virus transmitted? | by inhalation into a flock by carrier birds |
What are fourth characteristic pathogenetic traits of this disease? | Necrosis, hemorrhage, ulceration, and the formation of diptheritic membranes |
What causes death? | a "cheesy plug" from the membrane that causes asphyxiation |
What are the common clinical features of the disease? | marked respiratory distress, extension and slinging of neck during inspiration, resting on breast during exhalation, and coughing up of bloddy mucus |
What age group does this disease affect? | 4-18 months of age |
Who is affected? | Chickens and pheasants |
Morbidity vs. Mortality | 100% vs. 20-70% |
How do you detect neutralizing antibodies with this virus? | pock or plaque reduction assays |
How can you eradicate the disease in a flock? | complete depopulation and disinfection of the premises |
What vaccination schemes are used? | vaccination pullets and modified live-virus vaccine |