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    Alveolar tissue macrophage, digital illustration. — Stock Photo
    Alveolar tissue macrophage, digital illustration.
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Antibodies attacking influenza viruses — Stock Photo
    Antibodies attacking influenza viruses
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2 — Stock Photo
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2
    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
    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
    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
    Human red blood cells — Stock Photo
    Human red blood cells
    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
    Team of activists constructing wooden nesting boxes while gathering together in summer park — Stock Photo
    Team of activists constructing wooden nesting boxes while gathering together in summer park
    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.
    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
    Side view of unrecognizable saleswoman working on cash register while preparing purchase for client in shop with bottling eco detergents — Stock Photo
    Side view of unrecognizable saleswoman working on cash register while preparing purchase for client in shop with bottling eco detergents
    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)
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Mast cell releasing histamine during allergic response, digital illustration. — Stock Photo
    Mast cell releasing histamine during allergic response, digital illustration.
    Back view of Asian female with flying hair wearing protective mask walking in crowd and looking at camera — Stock Photo
    Back view of Asian female with flying hair wearing protective mask walking in crowd and looking at camera
    Virus being attacked by antibodies — Stock Photo
    Virus being attacked by antibodies
    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.
    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)
    White blood cell — Stock Photo
    White blood cell
    Top view of bag with modern photo accessories and white respirator mask placed on chair in room — Stock Photo
    Top view of bag with modern photo accessories and white respirator mask placed on chair in room
    Macrophage (purple) and cancer cells (red), illustration. — Stock Photo
    Macrophage (purple) and cancer cells (red), illustration.
    Illustration of a neutrophil. — Stock Photo
    Illustration of a neutrophil.
    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)
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    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.
    Alveolar tissue macrophage, digital illustration. — Stock Photo
    Alveolar tissue macrophage, digital illustration.
    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
    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
    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.
    A male lion (Panthera leo) showing the Flehmen response by opening his mouth wide roaring. Serengeti National Park; Tanzania — Stock Photo
    A male lion (Panthera leo) showing the Flehmen response by opening his mouth wide roaring. Serengeti National Park; Tanzania
    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.
    Crop anonymous person demonstrating transparent glass with cold cocktail with ice cubes served with berries on stick and zero waste straw — Stock Photo
    Crop anonymous person demonstrating transparent glass with cold cocktail with ice cubes served with berries on stick and zero waste straw
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    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 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