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    Activation of T-cell immune response, illustration. — Stock Photo
    Activation of T-cell immune response, illustration.
    Blind man walking with guide dog in subway — Stock Photo
    Blind man walking with guide dog in subway
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Close-up of a macrophage, illustration. — Stock Photo
    Close-up of a macrophage, illustration.
    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
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    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
    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.
    Influenza virus particles in blood stream — Stock Photo
    Influenza virus particles in blood stream
    Pathogenic bacteria in the blood stream — Stock Photo
    Pathogenic bacteria in the blood stream
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    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
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    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
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, conceptual digital illustration.
    Illustration of antibodies attacking influenza virus. — Stock Photo
    Illustration of antibodies attacking influenza virus.
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus — Stock Photo
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus
    Antibodies attacking virus particle, 3d illustration — Stock Photo
    Antibodies attacking virus particle, 3d illustration
    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
    Blind man walking with guide dog in subway — Stock Photo
    Blind man walking with guide dog in subway
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    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.
    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
    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.
    Firemen dousing burning building, British Columbia, Canada. — Stock Photo
    Firemen dousing burning building, British Columbia, Canada.
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2 (sphere) — Stock Photo
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2 (sphere)
    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
    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)
    Human red blood cells — Stock Photo
    Human red blood cells
    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
    Full body of male in medical mask walking through automatic card reader with dog in metro — Stock Photo
    Full body of male in medical mask walking through automatic card reader with dog in metro
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Bacterial infection spreading in bloodstream — Stock Photo
    Bacterial infection spreading in bloodstream
    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
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus — Stock Photo
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus
    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 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
    Side view of female buyer in medical mask shopping in store with various homemade organic soap — Stock Photo
    Side view of female buyer in medical mask shopping in store with various homemade organic soap
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    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
    Illustration of a neutrophil. — Stock Photo
    Illustration of a neutrophil.
    Virus being attacked by antibodies — Stock Photo
    Virus being attacked by antibodies
    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
    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)
    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
    Illustration of antibodies attacking influenza virus. — Stock Photo
    Illustration of antibodies attacking influenza virus.
    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
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Bacterial infection spreading in bloodstream — Stock Photo
    Bacterial infection spreading in bloodstream
    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.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    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
    RNA vaccine, conceptual illustration. molecule of RNA (ribonucleic acid, blue helix) is being injected at right. The RNA is taken up and read by body cells, causing them to produce copies of viral proteins (red) — Stock Photo
    RNA vaccine, conceptual illustration. molecule of RNA (ribonucleic acid, blue helix) is being injected at right. The RNA is taken up and read by body cells, causing them to produce copies of viral proteins (red)
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    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
    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
    Back view of unrecognizable female adolescent carrying handmade wooden nesting box for birds while gathering with volunteers during environmental campaign in summer park — Stock Photo
    Back view of unrecognizable female adolescent carrying handmade wooden nesting box for birds while gathering with volunteers during environmental campaign in summer park
    White blood cell — Stock Photo
    White blood cell