Chlamydia psittaci: inclusion vacuole ultrastructure

The inclusion ultrastructure of fibroblasts infected with Chlamydia psittaci (6BC) was studied. Electron microscopic techniques were used which permitted the observation of whole infected host cells and 1.0-micron sectioned preparations. It was shown that the cytoplasmic inclusion vacuoles of infected cells contained interconnecting structures within which chlamydiae reproduce.