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    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.
    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)
    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.
    Bacterial infection in the blood stream — Stock Photo
    Bacterial infection in the blood stream
    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
    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.
    T-cells (turquoise) surrounding a tumour (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
    T-cells (turquoise) surrounding a tumour (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
    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.
    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.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    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.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    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.
    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
    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
    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.
    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.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Crop anonymous activist in blue shirt and green rubber gloves carrying garbage bag while collecting trash in green park in summer day — Stock Photo
    Crop anonymous activist in blue shirt and green rubber gloves carrying garbage bag while collecting trash in green park in summer day
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Crop anonymous activist in protective gloves putting garbage into big trash bag while cleaning riverside in summer nature — Stock Photo
    Crop anonymous activist in protective gloves putting garbage into big trash bag while cleaning riverside in summer nature
    Back view of female buyer in medical mask talking to saleswoman while standing near shelf with organic soap — Stock Photo
    Back view of female buyer in medical mask talking to saleswoman while standing near shelf with organic soap
    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
    Crop anonymous saleswoman pouring washing powder by weight from beaker into paper package while making order for client in bulk shop — Stock Photo
    Crop anonymous saleswoman pouring washing powder by weight from beaker into paper package while making order for client in bulk shop
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Illustration of antibodies against SARS-CoV-2 virus that causes Covid-19 inside person wearing face mask. antibodies have been produced by body after vaccination, giving recipient immunity to disease — Stock Photo
    Illustration of antibodies against SARS-CoV-2 virus that causes Covid-19 inside person wearing face mask. antibodies have been produced by body after vaccination, giving recipient immunity to disease
    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
    Close-up of a macrophage, illustration. — Stock Photo
    Close-up of a macrophage, illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Blind man walking with guide dog in subway — Stock Photo
    Blind man walking with guide dog in subway
    Illustration of antibodies (red and blue) responding to an infection with the new coronavirus SARS-CoV-2 (red) — Stock Photo
    Illustration of antibodies (red and blue) responding to an infection with the new coronavirus SARS-CoV-2 (red)
    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
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Active female eco volunteer in protective mask and gloves collecting trash from creek into garbage bag in summer forest — Stock Photo
    Active female eco volunteer in protective mask and gloves collecting trash from creek into garbage bag in summer forest
    Female customer in protective mask consulting with saleswoman working in store with different bunches of flowers wrapped in zero waste paper package — Stock Photo
    Female customer in protective mask consulting with saleswoman working in store with different bunches of flowers wrapped in zero waste paper package
    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.
    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
    High angle of used disposable medical mask hanging on branch of tree in forest showing concept of environmental pollution — Stock Photo
    High angle of used disposable medical mask hanging on branch of tree in forest showing concept of environmental pollution
    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
    Female in medical mask with shopping bag walking past showcase of shop selling zero waste goods — Stock Photo
    Female in medical mask with shopping bag walking past showcase of shop selling zero waste goods
    Crop anonymous activist in protective gloves putting garbage into big trash bag while cleaning riverside in summer nature — Stock Photo
    Crop anonymous activist in protective gloves putting garbage into big trash bag while cleaning riverside in summer nature
    Back view of unrecognizable female with shopping bag walking past showcase of shop selling zero waste goods — Stock Photo
    Back view of unrecognizable female with shopping bag walking past showcase of shop selling zero waste goods
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    White blood cell — Stock Photo
    White blood cell
    Illustration of antibodies (yellow and blue) responding to an infection with the new coronavirus SARS-CoV-2 (red) — Stock Photo
    Illustration of antibodies (yellow and blue) responding to an infection with the new coronavirus SARS-CoV-2 (red)
    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
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Illustration of antigen-presenting cell activity of dendritic cells through membrane-bound histocompatibility complex molecules. — Stock Photo
    Illustration of antigen-presenting cell activity of dendritic cells through membrane-bound histocompatibility complex molecules.
    Back view of crop unrecognizable multiracial teen friends in blue uniform participating in environmental volunteer campaign in summer day — Stock Photo
    Back view of crop unrecognizable multiracial teen friends in blue uniform participating in environmental volunteer campaign in summer day
    From above of plastic medical mask floating on water of pond showing concept of environmental pollution with plastic — Stock Photo
    From above of plastic medical mask floating on water of pond showing concept of environmental pollution with plastic
    Pathogenic bacteria in the blood stream — Stock Photo
    Pathogenic bacteria in the blood stream
    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)
    Back view male in medical mask walking through automatic card reader with dog in metro — Stock Photo
    Back view male in medical mask walking through automatic card reader with dog in metro
    Full body of male in mask with eyesight disability standing on escalator with guide dog and using mobile phone — Stock Photo
    Full body of male in mask with eyesight disability standing on escalator with guide dog and using mobile phone
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.