human kidney with close-up bacteria streptococcus pyogenes

anatomical anatomy and bacteria bacterial biology body care cause closeup cross cystitis diagram disease education educational failure for glomerulonephritis health healthy human ill illness illustration infection infections inflammation internal kidney kidneys medical medicine nephritis nephrology organ pain painful physiology poster pyelonephritis pyogenes renal science streptococcus system that ureter urinary urine urogenital urology use uti vector