Virus image
Rights: Public domain Published 18 October 2010 Size: 27 KB Referencing Hub media

Viruses are microorganisms that are so basic they are not even classified as living. Viruses are just genetic material (DNA or RNA) wrapped up inside a strong ‘coat’ made of protein.

Courtesy of the Centers for Disease Control and Prevention's Public Health Image Library

    Appears in

    ARTICLE

    Microorganisms – friend or foe?

    We can’t see them. We can’t hear them or feel them, but they are with us. There are 10 trillion (10 x 1,000,000,000,000 or a million million) cells in the average body. For every cell, we have 10 ...

    READ MORE
    MORE
    Add to favourites
    Add to collection
  1. + Create new collection
      2. Go to full glossary
      Download all
      Email Us

      See our newsletters here.