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*''M. gallisepticum''
**Causes chronic repsiratory disease in chickens and infectious sinusitis in turkeys
**Transmission via the egg and aerosol
**Reduced egg production
**Identification by serum plate agglutination test, haemagglutination inhibition and ELISA
**Controlled in specific-pathogen-free flocks
**Modified live vaccines and bacterins available
[[Category:Mycoplasmas]][[Category:Poultry]]