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Overview of Viral Infections

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Virus Attaching to a Cell

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Virus Attaching to a Cell

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  • Overview of Viral Infections
  • For a virus (arrow) to spread, it must attach to a cell (arrowhead) and release its DNA or RNA, which is then manufactured inside the cell.

    (Computer Graphic © 1991 T. Jacobs/Custom Medical Stock Photo.)

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