a close-up view of two bacterial cells, e. coli and salmonella, with visible flagella and fimbriae

cancer cell microscope medical science biology health disease treatment medicine precision surgery tissue therapy trial clinical study hospital sample biopsy process focus bacteria coli salmonella prokaryotic cells membrane cytoplasm flagella fimbriae singlecelled organisms microorganisms pathogens foodborne illness antibiotic resistance bacterial infection cellular structure microbiology microscopic photomicrograph computer generated 3d rendering digital art scientific