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    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Dopaminergic neuron brain cells, digital illustration. — Stock Photo
    Dopaminergic neuron brain cells, digital illustration.
    Illustration of single human blood cell on black background. — Stock Photo
    Illustration of single human blood cell on black background.
    Illustration of abstract conceptual cancer monster. — Stock Photo
    Illustration of abstract conceptual cancer monster.
    Plasmodium vivax protozoan inside red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoan inside red blood cells, digital illustration.
    Human embryonic stem cell on pin tip, conceptual digital artwork. — Stock Photo
    Human embryonic stem cell on pin tip, conceptual digital artwork.
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Blood clotting in an ovarian follicle — Stock Photo
    Blood clotting in an ovarian follicle
    Malaria infection infecting red blood cells, digital illustration. — Stock Photo
    Malaria infection infecting red blood cells, digital illustration.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Sperm cells in seminiferous tubule — Stock Photo
    Sperm cells in seminiferous tubule
    Rod-shaped Anthrax bacteria — Stock Photo
    Rod-shaped Anthrax bacteria
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Cytotoxic T-cells capturing cancer cells, digital illustration. — Stock Photo
    Cytotoxic T-cells capturing cancer cells, digital illustration.
    Sperm cells, abstract digital illustration. — Stock Photo
    Sperm cells, abstract digital illustration.
    Antibodies attacking virus particles, computer illustration. — Stock Photo
    Antibodies attacking virus particles, computer illustration.
    Mast cell releasing histamine during allergic response, digital illustration. — Stock Photo
    Mast cell releasing histamine during allergic response, digital illustration.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Human sperm approaching egg cell — Stock Photo
    Human sperm approaching egg cell
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Cancer cell with filaments — Stock Photo
    Cancer cell with filaments
    Young female scientist viewing microscope during research. — Stock Photo
    Young female scientist viewing microscope during research.
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Hepatic bile duct infected with cocidian protozoa — Stock Photo
    Hepatic bile duct infected with cocidian protozoa
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Possible global pandemic. Vaccine study for the Coronavirus virus. Petri dishes in the lab. — Stock Photo
    Possible global pandemic. Vaccine study for the Coronavirus virus. Petri dishes in the lab.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Male sex cell — Stock Photo
    Male sex cell
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph. — Stock Photo
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph.
    3d illustration of white blood cells leukocytes in human body. — Stock Photo
    3d illustration of white blood cells leukocytes in human body.
    Human embryonic stem cell, digital illustration. — Stock Photo
    Human embryonic stem cell, digital illustration.
    Rancher Talking On Cell Phone — Stock Photo
    Rancher Talking On Cell Phone
    Animal cell structure — Stock Photo
    Animal cell structure
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Dividing bacteria on tissue surface — Stock Photo
    Dividing bacteria on tissue surface
    Cancer cells on plain background, digital illustration. — Stock Photo
    Cancer cells on plain background, digital illustration.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Cancer cell, computer illustration — Stock Photo
    Cancer cell, computer illustration
    Hands of female researcher using micropipette and tubes. — Stock Photo
    Hands of female researcher using micropipette and tubes.
    Cellular organelles and mitochondrion — Stock Photo
    Cellular organelles and mitochondrion
    Cancer cells and blood vessels — Stock Photo
    Cancer cells and blood vessels
    Illustration of dendrites of human nerve cell. — Stock Photo
    Illustration of dendrites of human nerve cell.
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Enterovirus with attached integrin molecules — Stock Photo
    Enterovirus with attached integrin molecules
    Digital illustration of green cancer cells. — Stock Photo
    Digital illustration of green cancer cells.
    Neutrophil white blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cells, digital illustration.
    Microvilli of gallbladder surface — Stock Photo
    Microvilli of gallbladder surface
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Section through the cerebellum in the brain — Stock Photo
    Section through the cerebellum in the brain
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Bacteriastrum sp. diatom algae — Stock Photo
    Bacteriastrum sp. diatom algae
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Structure of cellular organelles — Stock Photo
    Structure of cellular organelles
    HIV virus particles — Stock Photo
    HIV virus particles
    Magnified digital illustration of dendritic cell. — Stock Photo
    Magnified digital illustration of dendritic cell.
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell. — Stock Photo
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell.
    Structure of white blood cell — Stock Photo
    Structure of white blood cell