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PHIL Image 9997
 
ID#:9997
Description:Under a high magnification of 15549x, this colorized scanning electron micrograph (SEM) depicted some of the ultrastructural details seen in the cell wall configuration of a number of Gram-positive Mycobacterium tuberculosis bacteria. As an obligate aerobic organism M. tuberculosis can only survive in an environment containing oxygen. This bacterium ranges in length between 2 - 4 microns, and a width between 0.2 - 0.5 microns. See PHIL 8438 for a black and white version of this image.

TB bacteria become active, and begin to multiply, if the immune system can't stop them from growing. The bacteria attack the body and destroy tissue. If in the lungs, the bacteria can actually create a hole in the lung tissue. Some people develop active TB disease soon after becoming infected, before their immune system can fight off the bacteria. Other people may get sick later, when their immune system becomes weak for another reason.

Babies and young children often have weak immune systems. People infected with HIV, the virus that causes AIDS, have very weak immune systems. Other people can have weak immune systems, too, especially people with any of these conditions: substance abuse; diabetes mellitus; silicosis; cancer of the head or neck; leukemia or Hodgkin's disease; severe kidney disease; low body weight; certain medical treatments (such as corticosteroid treatment or organ transplants); specialized treatment for rheumatoid arthritis, or Crohn's disease.

High Resolution:Right click here and select "Save Target As..." for hi-resolution image (6.73 MB)
Content Providers(s):CDC/ Ray Butler, MS
Creation Date:2006
Photo Credit:Janice Haney Carr
Links:
  • CDC - Nat. Center for HIV, STD, and TB Prevention, Div. of Tuberculosis Elimination
    Categories:
    CDC Organization

    MeSH
    tree picture Analytical, Diagnostic and Therapeutic Techniques and Equipment
    tree picture tree picture Investigative Techniques
    tree picturetree picture tree picture Microscopy
    tree picturetree picturetree picture tree picture Microscopy, Electron
    tree picturetree picturetree picturetree picture tree picture Microscopy, Electron, Scanning
    tree picturetree picturetree picture tree picture Photomicrography
    tree picture Organisms
    tree picture tree picture Bacteria
    tree picturetree picture tree picture Gram-Positive Bacteria
    tree picturetree picturetree picture tree picture Gram-Positive Rods
    tree picturetree picturetree picturetree picture tree picture Gram-Positive Asporogenous Rods
    tree picturetree picturetree picturetree picturetree picture tree picture Gram-Positive Asporogenous Rods, Regular
    tree picturetree picturetree picturetree picturetree picturetree picture tree picture Mycobacteriaceae
    tree picturetree picturetree picturetree picturetree picturetree picturetree picture tree picture Mycobacterium
    tree picturetree picturetree picturetree picturetree picturetree picturetree picturetree picture tree picture Mycobacterium tuberculosis
    Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.
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