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    Illustration of antibodies (blue) attaching to a viral (purple) infected cell. Antibodies bind to specific antigens, for instance viral proteins displayed on the surface of infected cells, marking them for destruction by phagocyte immune cells. — Stock Photo
    Illustration of antibodies (blue) attaching to a viral (purple) infected cell. Antibodies bind to specific antigens, for instance viral proteins displayed on the surface of infected cells, marking them for destruction by phagocyte immune cells.
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Crop anonymous female client taking wooden brush from container while shopping in zero waste shop — Stock Photo
    Crop anonymous female client taking wooden brush from container while shopping in zero waste shop
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Firefighter with his back turned in the locker room near a row of metal lockers with helmets on top and orange uniform hanging down — Stock Photo
    Firefighter with his back turned in the locker room near a row of metal lockers with helmets on top and orange uniform hanging down
    Used protective mask on beach washed by sea wave showing concept of environmental pollution with medical waste — Stock Photo
    Used protective mask on beach washed by sea wave showing concept of environmental pollution with medical waste
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Illustration of person being vaccinated against Covid-19. injection has stimulated production of different antibodies against proteins on SARS-CoV-2 virus causes Covid-19 — Stock Photo
    Illustration of person being vaccinated against Covid-19. injection has stimulated production of different antibodies against proteins on SARS-CoV-2 virus causes Covid-19
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Young female in black dress and protective respirator mask walking down stairs in modern building during coronavirus pandemic — Stock Photo
    Young female in black dress and protective respirator mask walking down stairs in modern building during coronavirus pandemic
    Full length of female customer in mask choosing eco friendly detergent while consulting with seller in shop — Stock Photo
    Full length of female customer in mask choosing eco friendly detergent while consulting with seller in shop
    Illustration of a dendritic cell (centre, purple) activating T-cells (teal). Dendritic cells recognise viruses and present information about their antigens to T-cells — Stock Photo
    Illustration of a dendritic cell (centre, purple) activating T-cells (teal). Dendritic cells recognise viruses and present information about their antigens to T-cells
    High angle of crop unrecognizable parents and kid assembling wooden nesting box for birds together while participating in environmental project — Stock Photo
    High angle of crop unrecognizable parents and kid assembling wooden nesting box for birds together while participating in environmental project
    Large blue garbage bags placed near lake during clean up environmental volunteer campaign in summer nature — Stock Photo
    Large blue garbage bags placed near lake during clean up environmental volunteer campaign in summer nature
    Computer illustration of mast cell secreting biologically active compounds near cancer tumour. — Stock Photo
    Computer illustration of mast cell secreting biologically active compounds near cancer tumour.
    Macrophage (purple) and cancer cells (red), illustration. — Stock Photo
    Macrophage (purple) and cancer cells (red), illustration.
    Close-up of T-cells (turquoise) binding to cancer cells (pink), illustration. T-lymphocytes, or T-cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus — Stock Photo
    Close-up of T-cells (turquoise) binding to cancer cells (pink), illustration. T-lymphocytes, or T-cells, are a type of white blood cell and components of the body's immune system. They mature in the thymus
    Blind man walking with guide dog in subway — Stock Photo
    Blind man walking with guide dog in subway
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    Young female volunteer assembling wooden nesting box for birds during collaboration with activists in green summer park — Stock Photo
    Young female volunteer assembling wooden nesting box for birds during collaboration with activists in green summer park
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph.
    Influenza virus particles in blood stream — Stock Photo
    Influenza virus particles in blood stream
    Antibodies attacking influenza viruses — Stock Photo
    Antibodies attacking influenza viruses
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph.
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple. — Stock Photo
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple.
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor. — Stock Photo
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Female seller in protective mask giving advice to client choosing eco friendly metal bottle in store — Stock Photo
    Female seller in protective mask giving advice to client choosing eco friendly metal bottle in store
    Resting T lymphocytes. Coloured scanning electron micrograph (SEM) of resting T lymphocytes from a human blood sample. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system — Stock Photo
    Resting T lymphocytes. Coloured scanning electron micrograph (SEM) of resting T lymphocytes from a human blood sample. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system
    Team of unrecognizable activists picking plastic rubbish from ground while participating in eco campaign in summer forest — Stock Photo
    Team of unrecognizable activists picking plastic rubbish from ground while participating in eco campaign in summer forest
    Illustration of antibodies (purple) responding to an infection with the SARS-CoV-2 coronavirus (center) — Stock Photo
    Illustration of antibodies (purple) responding to an infection with the SARS-CoV-2 coronavirus (center)
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph.
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph.
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Dirty used medical masks on sandy beach showing concept of pollution with plastic waste — Stock Photo
    Dirty used medical masks on sandy beach showing concept of pollution with plastic waste
    Crop anonymous activist in protective gloves picking plastic bottle from ground while collecting garbage in nature — Stock Photo
    Crop anonymous activist in protective gloves picking plastic bottle from ground while collecting garbage in nature
    Macrophage (purple) and cancer cells (red), illustration. — Stock Photo
    Macrophage (purple) and cancer cells (red), illustration.
    Immune response to cancer — Stock Photo
    Immune response to cancer
    Back view of shirtless man sitting on plastic chair near store at street scene — Stock Photo
    Back view of shirtless man sitting on plastic chair near store at street scene
    Illustration of antibodies attacking influenza virus. — Stock Photo
    Illustration of antibodies attacking influenza virus.
    White blood cell — Stock Photo
    White blood cell
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Activation of T-cell immune response, illustration. — Stock Photo
    Activation of T-cell immune response, illustration.
    Seated firefighter buckling his boots before starting work in the metal-floored men's locker room — Stock Photo
    Seated firefighter buckling his boots before starting work in the metal-floored men's locker room
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Illustration of a dendritic cell, a type of white blood cell that is a component of the body's immune system — Stock Photo
    Illustration of a dendritic cell, a type of white blood cell that is a component of the body's immune system
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Woman in protective mask giving paper shopping bag to client while working at counter in bulk shop — Stock Photo
    Woman in protective mask giving paper shopping bag to client while working at counter in bulk shop
    Macrophage (purple) and cancer cells (red), illustration. — Stock Photo
    Macrophage (purple) and cancer cells (red), illustration.
    Crop anonymous female opening glass bottle made of eco friendly glass material for saving environment — Stock Photo
    Crop anonymous female opening glass bottle made of eco friendly glass material for saving environment
    Illustration of antibodies (purple) responding to an infection with the SARS-CoV-2 coronavirus (center) — Stock Photo
    Illustration of antibodies (purple) responding to an infection with the SARS-CoV-2 coronavirus (center)