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    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Communications tower in field in Oregon, United States — Stock Photo
    Communications tower in field in Oregon, United States
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible. — Stock Photo
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible.
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    Grandmother and little boy peeling an apple at home — Stock Photo
    Grandmother and little boy peeling an apple at home
    Woman using automatic vending machine at railway station — Stock Photo
    Woman using automatic vending machine at railway station
    Cables for public transportation in low angle view — Stock Photo
    Cables for public transportation in low angle view
    3d illustration of synapse structure of human neurons while passing electrical signal. — Stock Photo
    3d illustration of synapse structure of human neurons while passing electrical signal.
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland — Stock Photo
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland
    Marabou stork (Leptoptilos crumenifer) and black kites (Milvus migrans) sitting on a power line; Hoima, Western Region, Uganda — Stock Photo
    Marabou stork (Leptoptilos crumenifer) and black kites (Milvus migrans) sitting on a power line; Hoima, Western Region, Uganda
    Power line with industrial chimney — Stock Photo
    Power line with industrial chimney
    Green Park cycle lane at morning rush hour during the national lockdown, Covid-19 World Pandemic; London, England — Stock Photo
    Green Park cycle lane at morning rush hour during the national lockdown, Covid-19 World Pandemic; London, England
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus — Stock Photo
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Road Through A Rural Area — Stock Photo
    Road Through A Rural Area
    Flowering canola field with a pipeline in the field with blue sky; Beiseker, Alberta, Canada — Stock Photo
    Flowering canola field with a pipeline in the field with blue sky; Beiseker, Alberta, Canada
    Mouse mammary tumour virus (MMTV) particles (blue), coloured transmission electron micrograph (TEM). MMTV induces malignant tumours in the mammary glands of certain strains of laboratory mice — Stock Photo
    Mouse mammary tumour virus (MMTV) particles (blue), coloured transmission electron micrograph (TEM). MMTV induces malignant tumours in the mammary glands of certain strains of laboratory mice
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    Vintage old car parked at urban street — Stock Photo
    Vintage old car parked at urban street
    Power lines over the desert in Fruita, Colorado. — Stock Photo
    Power lines over the desert in Fruita, Colorado.
    Leukaemia cells in a patient with Bloom's syndrome, coloured transmission electron micrograph (TEM). — Stock Photo
    Leukaemia cells in a patient with Bloom's syndrome, coloured transmission electron micrograph (TEM).
    Clouds over satellite dishes, South Boston, Suffolk County, Massachusetts, USA — Stock Photo
    Clouds over satellite dishes, South Boston, Suffolk County, Massachusetts, USA
    Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen — Stock Photo
    Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Wooden pylon supporting power lines against sunlight. — Stock Photo
    Wooden pylon supporting power lines against sunlight.
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Grandmother and little boy peeling fruit at home — Stock Photo
    Grandmother and little boy peeling fruit at home
    Cute little boy and his parents kneading dough at kitchen — Stock Photo
    Cute little boy and his parents kneading dough at kitchen
    Coxsackie viruse particles. — Stock Photo
    Coxsackie viruse particles.
    Grandmother and little boy peeling an apple at kitchen — Stock Photo
    Grandmother and little boy peeling an apple at kitchen
    Grandmother and little boy kneading dough at kitchen — Stock Photo
    Grandmother and little boy kneading dough at kitchen
    Northern Lights glowing green in the starry sky above a rural road and transmission lines, Sturgeon County; Alberta, Canada — Stock Photo
    Northern Lights glowing green in the starry sky above a rural road and transmission lines, Sturgeon County; Alberta, Canada
    Pre-teen boy standing wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Pre-teen boy standing wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium
    Power lines in desert landscape. — Stock Photo
    Power lines in desert landscape.
    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    Senior man and boy holding model boat outdoors — Stock Photo
    Senior man and boy holding model boat outdoors
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Electrical-Power Transmission Lines — Stock Photo
    Electrical-Power Transmission Lines
    Cobblestone lane in Soho at evening rush hour during the national lockdown for the Covid-19 pandemic; London, England, UK — Stock Photo
    Cobblestone lane in Soho at evening rush hour during the national lockdown for the Covid-19 pandemic; London, England, UK
    Neurone embedded in grey matter — Stock Photo
    Neurone embedded in grey matter
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles. — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles.
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans — Stock Photo
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Power pylon on country plains under clouds in Texas, USA — Stock Photo
    Power pylon on country plains under clouds in Texas, USA
    Mid section of woman using ticket vending machine at station — Stock Photo
    Mid section of woman using ticket vending machine at station
    Nerve cells and axons — Stock Photo
    Nerve cells and axons
    Power pylon on country plains under clouds in Texas, USA — Stock Photo
    Power pylon on country plains under clouds in Texas, USA
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background. — Stock Photo
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background.
    From below tall modern radio tower located against majestic starry sky at wonderful night — Stock Photo
    From below tall modern radio tower located against majestic starry sky at wonderful night
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    COVID-19, Coronavirus, group of viruses in worldwide pandemic concept — Stock Photo
    COVID-19, Coronavirus, group of viruses in worldwide pandemic concept
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible. — Stock Photo
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible.
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    3d illustration of synapse structure of human neurons while passing electrical signal. — Stock Photo
    3d illustration of synapse structure of human neurons while passing electrical signal.