Legionella bacteria, SEM
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Legionella bacteria, SEM
Legionella bacteria. Coloured scanning electron micrograph (SEM) of Legionella pneumophila bacteria, the cause of Legionnaires disease. This rod-shaped, Gram-negative bacillus was first identified as a disease agent after a mysterious outbreak of pneumonia killed 29 American Legion members in 1976. It was found living in water tanks, showerheads and air-conditioning systems. The disease is contracted by inhaling airborne water droplets containing the bacteria. It causes fatal pneumonic lung disease in the elderly and unfit
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Media ID 6314607
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Bacilli Bacillus Bacteria Bacterial Bacteriology Bacterium Disease Causing False Colour Flagella Flagellum Gram Negative Infectious Legionella Pneumophila Micro Organism Micro Organisms Microbe Microbes Pathogenic Pathogens Pathological Pathology Pneumonia Pontiac Fever Respiratory Rod Shaped False Coloured Micro Biology Microbiological Pathogen
EDITORS COMMENTS
This print showcases the Legionella bacteria, specifically Legionella pneumophila, which is responsible for causing Legionnaires disease. The image, captured using a scanning electron microscope (SEM), reveals the intricate details of this rod-shaped, Gram-negative bacillus. In 1976, an outbreak of pneumonia claimed the lives of 29 American Legion members and led to the discovery of this elusive pathogen as its cause. Further investigation revealed that Legionella bacteria thrive in water tanks, showerheads, and air-conditioning systems. The disease is primarily contracted by inhaling airborne water droplets contaminated with these bacteria. Legionnaires disease poses a significant threat to vulnerable populations such as the elderly and individuals with compromised immune systems. It manifests as a severe pneumonic lung infection that can be fatal if left untreated. The false-colored SEM image provides valuable insights into the structure and characteristics of this dangerous bacterium. Its flagellum aids in movement while its gram-negative nature indicates certain properties related to its cell wall composition. Understanding pathogens like Legionella pneumophila through detailed visualizations like this allows researchers and medical professionals to develop effective prevention strategies and treatments against diseases caused by similar microorganisms. This photograph serves as a reminder of both the beauty and potential danger present within our microscopic world.
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