by Mara Casebeer
Most bacteria, like the common E. coli, are around a micron in length – less than a tenth of the width of a strand of human hair and invisible without a microscope.
Recently, scientists discovered a bacterium, Candidatus (Ca.)…
by Sanjana Kulkarnifigures by Corena Loeb
The bacteria Mycobacterium tuberculosis (TB) has been infecting humans for thousands of years. Today, TB, which is thought to have originated in Africa and evolved alongside human hosts, is found across the…