Introduction
A disease of turkeys caused by the viruses of the Pneumovirus genus, Paramyxoviridae. Morbidity is 10-100% and mortality 1- 30%. Rapid transmission occurs laterally, possibly involving fomites; vertical transmission is uncertain, maternal antibody may protect.
Signs
- Decreased appetite.
- Loss of voice.
- Ocular and nasal discharge.
- Sudden drop in production that lasts 2-3 weeks.
- Eggs depigmented and thin-shelled.
Post-mortem lesions
- Serous rhinitis and tracheitis.
Diagnosis
Signs.
Serology, isolation of ciliostatic agent.
Treatment
Antibiotics are not very effective, control respiratory stressors, chlorinate drinking water.
Prevention
All-in/all-out production, vaccination – live primer followed by inactivated.