En
  • En English
  • De Deutsch
  • Fr Français
  • Sp Español
  • Ru Русский
  • It Italiano
  • Pt Português
  • Ua Українська
1210 results

    OrientationOrientation
    PeoplePeople
    CategoryCategory
    ColorColor
    EditorialEditorial
    Safe SearchSafe Search
    Clear
    Hide
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Medical nanorobot machine, digital illustration. — Stock Photo
    Medical nanorobot machine, digital illustration.
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Digital illustration showing cerebrospinal fluid containing numerous neutrophils with Neisseria meningitidis bacteria of Meningococcal meningitis. — Stock Photo
    Digital illustration showing cerebrospinal fluid containing numerous neutrophils with Neisseria meningitidis bacteria of Meningococcal meningitis.
    Conceptual image of polyomavirus cells — Stock Photo
    Conceptual image of polyomavirus cells
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    3d illustration of a transparent and colourful protozoan. — Stock Photo
    3d illustration of a transparent and colourful protozoan.
    Meningitis bacteria (Neisseria meningitidis), computer illustration — Stock Photo
    Meningitis bacteria (Neisseria meningitidis), computer illustration
    Illustration of human blood cells on white background. — Stock Photo
    Illustration of human blood cells on white background.
    Migrating cancer cells — Stock Photo
    Migrating cancer cells
    Scanning electron micrograph of Brevibacteria on human feet causing odour. — Stock Photo
    Scanning electron micrograph of Brevibacteria on human feet causing odour.
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses — Stock Photo
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses
    Digital illustration of human nerve cell with dendrites. — Stock Photo
    Digital illustration of human nerve cell with dendrites.
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Illustration of male urinary system and parasitic Trichomonas vaginalis causing trichomoniasis. — Stock Photo
    Illustration of male urinary system and parasitic Trichomonas vaginalis causing trichomoniasis.
    Digital illustration of Enterobacteriaceae Gram-negative rod-shaped bacteria. — Stock Photo
    Digital illustration of Enterobacteriaceae Gram-negative rod-shaped bacteria.
    Colored scanning electron micrograph of rod-shaped, gram-negative bacteria Escherichia coli of human intestine. — Stock Photo
    Colored scanning electron micrograph of rod-shaped, gram-negative bacteria Escherichia coli of human intestine.
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    3d illustration of sperm cells frozen into ice cubes. — Stock Photo
    3d illustration of sperm cells frozen into ice cubes.
    View of Zika viruses — Stock Photo
    View of Zika viruses
    Illustration of red human blood cells on black background. — Stock Photo
    Illustration of red human blood cells on black background.
    Hair follicles of human skin — Stock Photo
    Hair follicles of human skin
    Illustration of dendrites of human nerve cell. — Stock Photo
    Illustration of dendrites of human nerve cell.
    Stachybotrys fungus on black background, digital illustration. — Stock Photo
    Stachybotrys fungus on black background, digital illustration.
    Group of flagella cholera bacteria, digital illustration. — Stock Photo
    Group of flagella cholera bacteria, digital illustration.
    Abstract green bacteria, computer illustration. — Stock Photo
    Abstract green bacteria, computer illustration.
    Illustration of dividing human egg cell. — Stock Photo
    Illustration of dividing human egg cell.
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Tendon, coloured scanning electron micrograph showing bundles of collagen fibres. — Stock Photo
    Tendon, coloured scanning electron micrograph showing bundles of collagen fibres.
    Scanning electron micrograph of head of pork tapeworm intestinal parasite. — Stock Photo
    Scanning electron micrograph of head of pork tapeworm intestinal parasite.
    Climbing lily pollen — Stock Photo
    Climbing lily pollen
    Mouldy smoked sausage and illustration of microscopic fungus Penicillium causing food spoilage and producing antibiotic penicillin. — Stock Photo
    Mouldy smoked sausage and illustration of microscopic fungus Penicillium causing food spoilage and producing antibiotic penicillin.
    Mouldy bread and illustration of microscopic fungi Penicillium causing food spoilage and producing antibiotic penicillin. — Stock Photo
    Mouldy bread and illustration of microscopic fungi Penicillium causing food spoilage and producing antibiotic penicillin.
    Digital illustration of fungal morphology of filamentous allergenic fungus Alternaria alternata and photograph of fungal colonies on Sabouraud Dextrose Agar. — Stock Photo
    Digital illustration of fungal morphology of filamentous allergenic fungus Alternaria alternata and photograph of fungal colonies on Sabouraud Dextrose Agar.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Illustration of dendritic cell interacting with T-cells on black background. — Stock Photo
    Illustration of dendritic cell interacting with T-cells on black background.
    Zika virus particles transmitted by mosquito bite, digital illustration. — Stock Photo
    Zika virus particles transmitted by mosquito bite, digital illustration.
    Possible global pandemic. Vaccine study for the Coronavirus virus. — Stock Photo
    Possible global pandemic. Vaccine study for the Coronavirus virus.
    Illustration of human nerve cell connections. — Stock Photo
    Illustration of human nerve cell connections.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Tapeworm parasites in intestines — Stock Photo
    Tapeworm parasites in intestines
    Abstract close-up of pink fabric structure, digital illustration. — Stock Photo
    Abstract close-up of pink fabric structure, digital illustration.
    Acrospaera radiolarian shell — Stock Photo
    Acrospaera radiolarian shell
    Broom pollen grain — Stock Photo
    Broom pollen grain
    Set of 46 human chromosomes on black background. — Stock Photo
    Set of 46 human chromosomes on black background.
    Conceptual illustration of food infection with piece of cake and close-up of Shigella bacteria. — Stock Photo
    Conceptual illustration of food infection with piece of cake and close-up of Shigella bacteria.
    Closterium desmid, computer illustration. — Stock Photo
    Closterium desmid, computer illustration.
    Illustration of yellow abscesses on kidney and close-up of bacteria. — Stock Photo
    Illustration of yellow abscesses on kidney and close-up of bacteria.
    Light micrograph of Hydra, a genus of small, fresh-water animals of the phylum Cnidaria and class Hydrozoa. — Stock Photo
    Light micrograph of Hydra, a genus of small, fresh-water animals of the phylum Cnidaria and class Hydrozoa.
    Penicillinum fungus on black background, digital illustration. — Stock Photo
    Penicillinum fungus on black background, digital illustration.
    Legionella pneumophila bacteria — Stock Photo
    Legionella pneumophila bacteria
    Conceptual digital illustration showing Pentatrichomonas hominis parasites in drop of water from dirty tap. — Stock Photo
    Conceptual digital illustration showing Pentatrichomonas hominis parasites in drop of water from dirty tap.
    Clostridium tetani bacterium — Stock Photo
    Clostridium tetani bacterium
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan.
    Coloured scanning electron micrograph of the rod-shaped, Gram-negative bacteria Escherichia coli, commonly known as E. coli — Stock Photo
    Coloured scanning electron micrograph of the rod-shaped, Gram-negative bacteria Escherichia coli, commonly known as E. coli
    Lymphocytes attacking a cancer cell — Stock Photo
    Lymphocytes attacking a cancer cell
    Illustration of 8 cell stage egg on blue background. — Stock Photo
    Illustration of 8 cell stage egg on blue background.
    Light micrograph of single-celled Amoeba engulfing protozoan Paramecium. — Stock Photo
    Light micrograph of single-celled Amoeba engulfing protozoan Paramecium.