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Volume 10, Number 2—February 2004
THEME ISSUE
2004 SARS Edition

Laboratory Study

Ultrastructural Characterization of SARS Coronavirus

Cynthia S. Goldsmith*, Kathleen M. Tatti*, Thomas G. Ksiazek*, Pierre E. Rollin*, James A. Comer*, William W. Lee*, Paul A. Rota*, Bettina Bankamp*, William J. Bellini*, and Sherif R. Zaki*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA

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Figure 4

Immunogold and in situ hybridization (ISH) labeling of severe acute respiratory syndrome–associated coronavirus–infected cells. A) Cytoplasmic area that is relatively free of organelles (arrow). B) At higher magnification, these regions are shown to consist of ribosomelike and filamentous structures. Within these regions, C) viral proteins are detected by immunolabeling, using hyperimmune mouse ascitic fluid (12 nm gold), and D) ultrastructural ISH detects viral mRNA, genRNA, or both, by using a

Figure 4. Immunogold and in situ hybridization (ISH) labeling of severe acute respiratory syndrome–associated coronavirus–infected cells. A) Cytoplasmic area that is relatively free of organelles (arrow). B) At higher magnification, these regions are shown to consist of ribosomelike and filamentous structures. Within these regions, C) viral proteins are detected by immunolabeling, using hyperimmune mouse ascitic fluid (12 nm gold), and D) ultrastructural ISH detects viral mRNA, genRNA, or both, by using a pool of riboprobes (6 nm gold). Bars, A,1 μm; B–D, 100 nm.

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