Control of avian mycoplasmoses by vaccination.

摘要: Vaccination is an option for controlling Mycoplasma gallisepticum or M. synoviae when biosecurity measures fail to prevent the infection of poultry flocks with these mycoplasmas. Both killed vaccines (bacterins) and living are currently in commercial use. Bacterins usually contain oil emulsion adjuvant administered by subcutaneous intramuscular injection. They can reduce decline egg production associated gallisepticum, although they do not infection. Newer adjuvants, such as immune stimulating complexes, may provide effective immunity without tissue lesions caused adjuvants. Living include F strain attenuated strains ts-11 6/85. drinking water aerosol. This reduces has been used displace endemic multiple-age flocks. The major disadvantage inherent virulence strain. Strain less virulent infectious than provides a somewhat weaker, but effective, long-term protective immunity, which vaccine-dose dependent. eye drop, persists chicken long periods stimulates detectable variable systemic antibody response. be safely combination respiratory virus vaccines. 6/85 also weaker response low infectivity. aerosol, appears persist vaccinated birds stimulate MS-H being evaluated live vaccine against meat breeder often conjunction ts-11.