pathogenicity colorful line banner. pathogen

abstract analysis bacillus background bacteria bacterial bacteriology banner biology blue care cell chemical circle colored colorful concept contaminant contaminants danger dangerous dark disease element epidemic experiment health horizontal hygiene icon illness illustration immune infected influenza isolated line linear logo medical micro microbe microorganism microscopic mirco modern molecular outline pandemic pathogen pathogenic pathogenicity pictogram pollen poster science scientific set shape sick sign silhouette simple small spore style symbol system test thin vector