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    Power lines in desert landscape. — Stock Photo
    Power lines in desert landscape.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Tall electricity pylon with high voltage cables in highland against snowy mountain ridges at horizon under gray cloudy sky in Spain — Stock Photo
    Tall electricity pylon with high voltage cables in highland against snowy mountain ridges at horizon under gray cloudy sky in Spain
    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
    Brucella bacteria, illustration. Gram-negative pleomorphic bacteria that cause brucellosis in cattle and humans and are transmitted to humans by direct contact with ill animal or by contaminated milk. — Stock Photo
    Brucella bacteria, illustration. Gram-negative pleomorphic bacteria that cause brucellosis in cattle and humans and are transmitted to humans by direct contact with ill animal or by contaminated milk.
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Aerial image of high voltage poles at a glacier river in Iceland — Stock Photo
    Aerial image of high voltage poles at a glacier river in Iceland
    High voltage transmission lines at west of Clinton, British Columbia, Canada — Stock Photo
    High voltage transmission lines at west of Clinton, British Columbia, Canada
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles. — Stock Photo
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles.
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus — Stock Photo
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus
    Man wearing a mask and gloves walking on a path outside using his smart phone during the Covid-19 world pandemic; Edmonton, Alberta, Canada — Stock Photo
    Man wearing a mask and gloves walking on a path outside using his smart phone during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    Communications tower in field in Oregon, United States — Stock Photo
    Communications tower in field in Oregon, United States
    Prevention of transplacental HIV transmission to human embryo from infected mother, conceptual illustration. — Stock Photo
    Prevention of transplacental HIV transmission to human embryo from infected mother, conceptual illustration.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Power transmission towers at dusk near Winnipeg, Manitoba, Canada. — Stock Photo
    Power transmission towers at dusk near Winnipeg, Manitoba, Canada.
    Colorful digital illustration of neural network of nervous system in human brain. — Stock Photo
    Colorful digital illustration of neural network of nervous system in human brain.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Windows boarded up on a building during national lockdown in London during the Covid-19 Global Pandemic; London, England — Stock Photo
    Windows boarded up on a building during national lockdown in London during the Covid-19 Global Pandemic; London, England
    Abstract structure of neural network on dark background, digital illustration. — Stock Photo
    Abstract structure of neural network on dark background, digital illustration.
    Protozoan infection in human intestinal lumen — Stock Photo
    Protozoan infection in human intestinal lumen
    Bacteria Erysipelothrix rhusiopathiae — Stock Photo
    Bacteria Erysipelothrix rhusiopathiae
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland — Stock Photo
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland
    Intestinal brush border in small intestine showing numerous microvilli, colored transmission electron micrograph. — Stock Photo
    Intestinal brush border in small intestine showing numerous microvilli, colored transmission electron micrograph.
    Intestinal microvilli. Coloured transmission electron micrograph (TEM) of a section through microvilli from the small intestine. These tiny structures (cyan) form a dense brush-like covering on the absorptive surfaces of the cells — Stock Photo
    Intestinal microvilli. Coloured transmission electron micrograph (TEM) of a section through microvilli from the small intestine. These tiny structures (cyan) form a dense brush-like covering on the absorptive surfaces of the cells
    Man wearing a mask and gloves walking on a path outside using his smart phone during the Covid-19 world pandemic; Edmonton, Alberta, Canada — Stock Photo
    Man wearing a mask and gloves walking on a path outside using his smart phone during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    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
    Helicobacter pylori bacterium — Stock Photo
    Helicobacter pylori bacterium
    COVID-19. Syringe, protective mask and disinfectant gel, latex gloves. Products to prevent coronavirus. on white background Isolated.Quarantine — Stock Photo
    COVID-19. Syringe, protective mask and disinfectant gel, latex gloves. Products to prevent coronavirus. on white background Isolated.Quarantine
    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).
    Transportation infrastructure with flyovers at motorway interchange in West Bromwich, West Midlands, UK. — Stock Photo
    Transportation infrastructure with flyovers at motorway interchange in West Bromwich, West Midlands, UK.
    Highland against snowy mountain ridges at horizon under gray cloudy sky in Spain — Stock Photo
    Highland against snowy mountain ridges at horizon under gray cloudy sky in Spain
    Two friends looking at a wine glass — Stock Photo
    Two friends looking at a wine glass
    Zika virus particles — Stock Photo
    Zika virus particles
    Grandmother and little boy kneading dough at kitchen — Stock Photo
    Grandmother and little boy kneading dough at kitchen
    Low angle view of electricity pylon and power lines in North Wales, UK. — Stock Photo
    Low angle view of electricity pylon and power lines in North Wales, UK.
    Venule. Coloured transmission electron micrograph (TEM). Venules are small veins that transport deoxygenated blood from the capillary beds to the veins. Endothelial cells line the entire circulatory system — Stock Photo
    Venule. Coloured transmission electron micrograph (TEM). Venules are small veins that transport deoxygenated blood from the capillary beds to the veins. Endothelial cells line the entire circulatory system
    Power lines over the desert in Fruita, Colorado. — Stock Photo
    Power lines over the desert in Fruita, Colorado.
    Grandmother and little boy smelling honey at kitchen — Stock Photo
    Grandmother and little boy smelling honey at kitchen
    Pre-teen boy wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Pre-teen boy wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Power line with industrial chimney — Stock Photo
    Power line with industrial chimney
    View of abandoned truck — Stock Photo
    View of abandoned truck
    Pancreatic cells. Colored transmission electron micrograph (TEM) of acinar (exocrine) pancreatic cells (red) adjacent to hormone- secreting (endocrine) Islet of Langerhans cells (yellow) — Stock Photo
    Pancreatic cells. Colored transmission electron micrograph (TEM) of acinar (exocrine) pancreatic cells (red) adjacent to hormone- secreting (endocrine) Islet of Langerhans cells (yellow)
    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is brown. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (blue) contain enzymes for digesting foreign particles — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is brown. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (blue) contain enzymes for digesting foreign particles
    Artificial intelligence, conceptual illustration — Stock Photo
    Artificial intelligence, conceptual illustration
    Boy using his smart phone and wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Boy using his smart phone and wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Power pylon on country plains under clouds in Texas, USA — Stock Photo
    Power pylon on country plains under clouds in Texas, USA
    Radio tower against starry sky — Stock Photo
    Radio tower against starry sky
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Driver seat with transmission lever skull handle — Stock Photo
    Driver seat with transmission lever skull handle
    Grandmother and little boy peeling an apple at kitchen — Stock Photo
    Grandmother and little boy peeling an apple at kitchen
    Colorful digital illustration of neural network of nervous system in human brain. — Stock Photo
    Colorful digital illustration of neural network of nervous system in human brain.
    Grandmother and little boy peeling fruit at home — Stock Photo
    Grandmother and little boy peeling fruit at home