enterobacteriaceae, gram-negative rod-d bacteria, part of intestinal microbiome and causative agents of different infections

3d microorganism health gramnegative enterobacteriaceae enterobacter disease klebsiella microflora microbiology infection rodshaped salmonella medical virus lactobacillus macro threedimensional sickness microscope medicine microbe scientific research organism micro microscopic laboratory causative agents illness rendering bacillus bacteria cell bacterial bacterium biological biology coli digestion epidemic escherichia flu germ closeup human pyelonephritis