Mycoplasma infectious sinusitis occurs in all poultry species of all ages worldwide. It is small procaryotic microorganisms- Mycoplasma gallisepticum; M. meleagridis. Spread vertically through hatching egg contact or contact with infected birds by aerosol.
- Causes of Mycoplasma infectious sinusitis >
- Effects of Mycoplasma infectious sinusitis >
- Diagnosis of Mycoplasma infectious sinusitis >
- Treatment & Control of Mycoplasma infectious sinusitis >
Causes of Mycoplasma infectious sinusitis
All species of bird or all ages are susceptible to this chronic disease. The agents involved in the aetiology of this disease are Mycoplama gallisepticum (MG) and M. meleagridis (MM) in turkeys. (MM is found only in turkeys).
Mode of transmission
Spread through egg or contact with infected birds by aerosol (also through indirect contact via people and other fomites).
Effects of Mycoplasma infectious sinusitis
Signs include nasal discharge, emaciation, increased condemnation, sneezing and coughing, swollen infraorbital sinus (above the eye), feed refusal, foaming of eye, and/or air sacculitis.
Postmortem lesions
Caseous sinus and air sacculitis can be seen.
Diagnosis of Mycoplasma infectious sinusitis
Serologial tests include plate agglutination, HI or ELISA test.Isolate organism from the sinus and identify with antigen capture ELISA test and monoclonal antibody; fluorescent antibody or recombinant probe and nucleic acid hybridisation assay.
It simulates many diseases including coryza, NDV, E. coli and IBV.
Treatment & Control of Mycoplasma infectious sinusitis
Prevention
Depopulate infected stock, hatch clean stock only, vaccination of pullets for MG with live or killed vaccine to prevent the disease.
Treatment
Drugs, which can be used, include tylosin, LS 50® at (2 g/gal), quinolones and spiramycin*.
*Not approved for use in the US.
