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Streptococcus Pyogenes

Bacteriologic Chart 1. Gonococcus spp. 2. Pneumococcus spp. 3, Streptococcus pyogenes 4. Micobacterium tuberculosis 5. Vibrio cholerae 6. Corynebacterium diphtheriae 7. Bacterium typhosum 8. Bacterium dysenteriae 9. Achorion Schonleinii [favus fungus] 10. Bacillus anthracis 11. Bacillus aerogenes capsulatus 12. Yeast cells - With buds and ascospores depicted Postmortem Pathology. Henry W. Cattell, 1906.


gram staining. on my way to actually knowing science


Streak plate of Streptococcus pyogenes (incubated @ 37 degrees C for 48 hrs) showing beta hemolysis, complete lysis of red blood cells, around the isolated colonies. Image taken using transmitted light.


Strep throat is caused by the Streptococcus pyogenes bacteria and is more common…

The group A streptococcus bacterium (Streptococcus pyogenes, or GAS) is a form of β-hemolytic Streptococcus bacteria responsible for most cases of streptococcal illness. Other types (B, C, D, and G) may also cause infection. Several virulence factors contribute to the pathogenesis of GAS, such as M protein, hemolysins, and extracellular enzymes.