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3171 results

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    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Viruses infecting human cells — Stock Photo
    Viruses infecting human cells
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Blood vessel with blood cells — Stock Photo
    Blood vessel with blood cells
    Artwork of Rod-shaped bacteria — Stock Photo
    Artwork of Rod-shaped bacteria
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Sperm cell in a fallopian tube — Stock Photo
    Sperm cell in a fallopian tube
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    Nerve cells and axons — Stock Photo
    Nerve cells and axons
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Entamoeba histolytica engulfing red blood cells — Stock Photo
    Entamoeba histolytica engulfing red blood cells
    HIV virus particles — Stock Photo
    HIV virus particles
    Destruction of a cancer cell by antibodies — Stock Photo
    Destruction of a cancer cell by antibodies
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Mucosa structure of the cervix — Stock Photo
    Mucosa structure of the cervix
    Migrating cancer cells — Stock Photo
    Migrating cancer cells
    Neutrophil cells aggregating at site of infection — Stock Photo
    Neutrophil cells aggregating at site of infection
    Blood clot formation — Stock Photo
    Blood clot formation
    Cancer cells on tissue surface — Stock Photo
    Cancer cells on tissue surface
    Red blood cells aggregated — Stock Photo
    Red blood cells aggregated
    Blood clot formed by red blood cells — Stock Photo
    Blood clot formed by red blood cells
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Destruction of cancer cell — Stock Photo
    Destruction of cancer cell
    Human multi-cellular embryo — Stock Photo
    Human multi-cellular embryo
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Blood clotting in an ovarian follicle — Stock Photo
    Blood clotting in an ovarian follicle
    Nanorobot on red blood cell — Stock Photo
    Nanorobot on red blood cell
    Uneven surface and cytoplasmic projections — Stock Photo
    Uneven surface and cytoplasmic projections
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    Cells trapped in fibrin protein mesh — Stock Photo
    Cells trapped in fibrin protein mesh
    Destruction of a cancer cell by antibodies — Stock Photo
    Destruction of a cancer cell by antibodies
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Breast cancer cells growing in culture — Stock Photo
    Breast cancer cells growing in culture
    Nerve cells affected by alzheimers — Stock Photo
    Nerve cells affected by alzheimers
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Red blood cells in a blood vessel — Stock Photo
    Red blood cells in a blood vessel
    Cucumber mosaic virus — Stock Photo
    Cucumber mosaic virus
    Red and white blood cells — Stock Photo
    Red and white blood cells
    Female reproductive system — Stock Photo
    Female reproductive system
    Syphilis ulcer on vulva — Stock Photo
    Syphilis ulcer on vulva
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Human ovary structure — Stock Photo
    Human ovary structure
    Prostate tissue showing Iadenocarcinoma — Stock Photo
    Prostate tissue showing Iadenocarcinoma
    Female reproductive system — Stock Photo
    Female reproductive system
    Syphilis ulcer on vulva — Stock Photo
    Syphilis ulcer on vulva
    Red blood cells — Stock Photo
    Red blood cells