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4236 results

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    Staphylococci bacteria colony — Stock Photo
    Staphylococci bacteria colony
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Illustration of Lactobacillus colony — Stock Photo
    Illustration of Lactobacillus colony
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Bacterial infection and reproducing bacteria — Stock Photo
    Bacterial infection and reproducing bacteria
    Radiolarians amoeboid protozoa — Stock Photo
    Radiolarians amoeboid protozoa
    Nudaurelia capensis omega virus particles — Stock Photo
    Nudaurelia capensis omega virus particles
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom
    Freshwater diatom Licmorpha sp. — Stock Photo
    Freshwater diatom Licmorpha sp.
    Non-pathogenic Propionibacterium bacteria — Stock Photo
    Non-pathogenic Propionibacterium bacteria
    Rod-shaped bacterial strands — Stock Photo
    Rod-shaped bacterial strands
    Bacteria infecting organism — Stock Photo
    Bacteria infecting organism
    Viral particle infection blood stream — Stock Photo
    Viral particle infection blood stream
    Destruction of human cytomegalovirus — Stock Photo
    Destruction of human cytomegalovirus
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    Arachnoidiscus sp. diatom algae — Stock Photo
    Arachnoidiscus sp. diatom algae
    Gram-positive Nocardia bacteria — Stock Photo
    Gram-positive Nocardia bacteria
    Pathogenic bacteria in the blood stream — Stock Photo
    Pathogenic bacteria in the blood stream
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Od shaped bacteria Tragelaphus — Stock Photo
    Od shaped bacteria Tragelaphus
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Bacterial cells on tissue surface — Stock Photo
    Bacterial cells on tissue surface
    Flu virus particle structure — Stock Photo
    Flu virus particle structure
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Bacteriophage t4 virus and red blood cell — Stock Photo
    Bacteriophage t4 virus and red blood cell
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Viral particle structure — Stock Photo
    Viral particle structure
    Lychnocanoma radiolarian shell — Stock Photo
    Lychnocanoma radiolarian shell
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Red blood cells — Stock Photo
    Red blood cells
    Flu virus particle structure — Stock Photo
    Flu virus particle structure
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Bacterial blood infection — Stock Photo
    Bacterial blood infection
    Growing bacterial colony — Stock Photo
    Growing bacterial colony
    Hepatitis E virus particles — Stock Photo
    Hepatitis E virus particles
    Bacterial cells on tissue surface — Stock Photo
    Bacterial cells on tissue surface
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Retrovirus virion structure and shape — Stock Photo
    Retrovirus virion structure and shape
    Streptococcus bacteria structure — Stock Photo
    Streptococcus bacteria structure
    Virus particles or virions — Stock Photo
    Virus particles or virions
    Rod-shaped bacteria infecting organism — Stock Photo
    Rod-shaped bacteria infecting organism
    Salmonella sp. bacteria on tissue surface — Stock Photo
    Salmonella sp. bacteria on tissue surface
    Bacterial infection of tissue lining — Stock Photo
    Bacterial infection of tissue lining
    Reovirus viral particle — Stock Photo
    Reovirus viral particle
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Radiolarians amoeboid protozoa — Stock Photo
    Radiolarians amoeboid protozoa
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Growing bacterial colony — Stock Photo
    Growing bacterial colony
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Bacterial cells on tissue surface — Stock Photo
    Bacterial cells on tissue surface
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Escherichia coli pathogenic bacteria — Stock Photo
    Escherichia coli pathogenic bacteria
    Bacterial blood infection — Stock Photo
    Bacterial blood infection
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Rod-shaped bacterial organisms — Stock Photo
    Rod-shaped bacterial organisms
    Human sperm cells — Stock Photo
    Human sperm cells