Shigella sp. bacterium. Coloured scanning electron micrograph (SEM) of a Shigella sp. bacterium (orange) infront of a crenated (spiked) human red bloo
Shigella sp. bacterium. Coloured scanning electron micrograph (SEM) of a Shigella sp. bacterium (orange) infront of a crenated (spiked) human red blood cell (blue), known as an echinocyte. Shigella sp. are Gram-negative rod-shaped bacteria. They infect the large intestine, causing dysentery, which can vary in severity from a mild attack of diarrhoea to an acute infection. Dysentery is spread by flies, direct contact and faeces-contaminated water. Treatment is with sulphonamide drugs. Red blood cells are usually biconcave, however this cell has been exposed to a concentrated solution, causing it to shrink and change of shape. Magnification: x9,500 when printed 10 centimetres wide.
Size: 4318px × 3579px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: bacteria, bacteriology, bacterium, biological, biology, blood, burr, cell, cells, coloured, crenated, dysentery, echinocyte, echinocytes, erythrocyte, false-colour, false-coloured, human, intestinal, irregular, microbiological, microbiology, osmotic, pathogen, pathogenic, person, physiological, physiology, rbc, red, sem, shigella, shrinkage, shrunk, sp., spike, spiked, spikes, stressed
