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Home > All Images > 1991 > September > 27 Sep 1991

Images Dated 27th September 1991

Choose from 5 pictures in our Images Dated 27th September 1991 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


F/col TEM of Mycobacterium tuberculosis Featured 27 Sep 1991 Print

F/col TEM of Mycobacterium tuberculosis

False-colour transmission electron micrograph (TEM) of a rod-like bacterium, Mycobacterium tuberculosis, the causative agent of tuberculosis in humans. This bacterium forms filamentous, branching structures, which are inhaled into the lungs to form a primary tubercle, an initial focus of infection; spread takes place via adjacent lymph nodes. This form is called pulmonary tuberculosis or consumption & phthisis (wasting). Many people are infected without showing symptoms, whilst the body's immune system holds the disease in check. They remain carriers, transmitting the bacilli by coughing or sneezing. Magnification: x18, 000 at 35mm size, x36, 000 at 6x7cm size

© CNRI/SCIENCE PHOTO LIBRARY