pathogenicity blue square frame. outline

bacillus background bacteria bacterial bacteriology bacterium bad banner biological biology blue card cell circle coli color concept contaminant creative creature cyanobacteria dangerous design discovery disease element frame germ graphic icon illustration infected infection isolated item line linear logo macro medicine microbe microbiological microbiology minimal modern molecule object outline parasitic pathogen pathogenicity prebiotic round sick sign silhouette substance symbol system technology template thin vector virology virus white