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Biology LibreTexts

22: Respiratory System Infections

  • Page ID
    5248
  • [ "article:topic-guide", "authorname:openstax", "license:ccby" ]

    Thumbnail: Coronaviruses are a group of viruses known for causing the common cold. They have a halo or crown-like (corona) appearance when viewed under an electron microscope. Image used with permission (Public Domain; CDC/Dr. Fred Murphy).