The virulence and viability of Mycoplasma mycoides strains in chicken embryos from normal and immunized hens.
D000818:Animals; D002642:Chick Embryo / Q000276:immunology*; D005260:Female; D009174:Mycoplasma / Q000472:pathogenicity*; D009175:Mycoplasma Infections / Q000276:immunology*; D011201:Poultry Diseases / Q000276:immunology*