acute pyelonephritis, medical concept

acute pyelonephritis nephritis kidney infection enterococcus faecalis faecium bacteria 3d illustration spherical cocci coccus inflammation chronic grampositive microorganism microbe streptococcus urine mecidine medical science scientific research antibiotic resistant treatment concept conceptual realistic pathogen pathology pathogenic human pus purulent blister escherichia coli isolated focal abscesses exudate black background