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Microbiology, 2021

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244 6 • Acellular Pathogens<br />

changes in cell shape from flat to round, shrinkage of the nucleus, vacuoles in the cytoplasm, fusion of<br />

cytoplasmic membranes and the formation of multinucleated syncytia, inclusion bodies in the nucleus or<br />

cytoplasm, and complete cell lysis (see Figure 6.21).<br />

Further pathological changes include viral disruption of the host genome and altering normal cells into<br />

transformed cells, which are the types of cells associated with carcinomas and sarcomas. The type or severity<br />

of the CPE depends on the type of virus involved. Figure 6.21 lists CPEs for specific viruses.<br />

Figure 6.21<br />

(credit “micrographs”: modification of work by American Society for <strong>Microbiology</strong>)<br />

Access for free at openstax.org.

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