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Bacteria infecting a macrophage, SEM

Bacteria infecting a macrophage, SEM


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Bacteria infecting a macrophage, SEM

Bacteria infecting a macrophage. Coloured scanning electron micrograph (SEM) of Mycobacterium tuberculosis bacteria (purple) infecting a macrophage white blood cell. The macrophage, when activated, will engulf (phagocytose) the bacteria and destroy them as part of the bodys immune response. M. tuberculosis causes the disease tuberculosis. It infects the lungs creating primary tubercles, nodular lesions of dead tissue and bacteria. The bacteria may enter the blood or lymph systems and spread to other organs of the body. Tuberculosis is spread by coughs and sneezes

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6292883

© SCIENCE PHOTO LIBRARY

Bacteria Bacterium False Colour Immune Response Immunology Infecting Macrophage Mycobacterium Tuberculosis Pathogenic Phagocytosis System Tuberculosis White Blood Cell Cells False Coloured Micro Biology Microbiological Pathogen


EDITORS COMMENTS
This print captures the intricate battle between bacteria and our body's immune system. In this colored scanning electron micrograph (SEM), we witness Mycobacterium tuberculosis, the pathogen responsible for tuberculosis, infecting a macrophage white blood cell. The purple-colored bacteria are seen invading the macrophage, which plays a crucial role in our immune response. When activated, the macrophage engulfs and destroys these harmful invaders through phagocytosis. This process is an essential defense mechanism that helps protect our bodies from infections and diseases. However, M. tuberculosis is known to be particularly cunning, as it can survive within these engulfing cells. Tuberculosis primarily affects the lungs by creating nodular lesions of dead tissue and bacteria called primary tubercles. If left untreated, this infectious disease can spread through the bloodstream or lymphatic system to other organs in the body. The transmission of tuberculosis occurs through coughs and sneezes when infected individuals release tiny droplets containing M. tuberculosis into the air. This remarkable SEM image not only showcases the beauty of biology but also serves as a reminder of how complex and fascinating our immune system is in its constant battle against pathogens like M. tuberculosis.

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