title: Bursa of Fabricius containing virus-like particles. An electron microscopic observation.
mesh_terms: D000818:Animals; D002060:Bursa of Fabricius / Q000166:cytology / Q000382:microbiology*; D002645:Chickens; D003594:Cytoplasmic Granules; D005260:Female; D008854:Microscopy, Electron; D014780:Viruses / Q000302:isolation & purification*