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    Power transmission towers at dusk near Winnipeg, Manitoba, Canada. — Stock Photo
    Power transmission towers at dusk near Winnipeg, Manitoba, Canada.
    Neisseria gonorrhoeae bacterium — Stock Photo
    Neisseria gonorrhoeae bacterium
    Man and little boy using laptop computer — Stock Photo
    Man and little boy using laptop computer
    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
    Fenced balcony with blooming flowers in pots under cloudy sky in Province of Utrecht Netherlands — Stock Photo
    Fenced balcony with blooming flowers in pots under cloudy sky in Province of Utrecht Netherlands
    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)
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles. — Stock Photo
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles.
    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
    Girl Test Driving Car — Stock Photo
    Girl Test Driving Car
    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.
    Boy with smart phone wearing protective mask to protect against COVID-19 during the Coronavirus World Pandemic, and his younger sister in the background; Toronto, Ontario, Canada — Stock Photo
    Boy with smart phone wearing protective mask to protect against COVID-19 during the Coronavirus World Pandemic, and his younger sister in the background; Toronto, Ontario, Canada
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    From above crop anonymous male aviator pushing lever on dashboard while piloting modern aircraft during flight — Stock Photo
    From above crop anonymous male aviator pushing lever on dashboard while piloting modern aircraft during flight
    Serious gray haired elderly repairman using tablet and watching video instruction while fixing old broken motorcycle in garage — Stock Photo
    Serious gray haired elderly repairman using tablet and watching video instruction while fixing old broken motorcycle in garage
    Emley Moor TV Transmitter in green country landscape, Yorkshire, England, Great Britain, Europe — Stock Photo
    Emley Moor TV Transmitter in green country landscape, Yorkshire, England, Great Britain, Europe
    Gram negative Calymmatobacterium sp. — Stock Photo
    Gram negative Calymmatobacterium sp.
    Cute little boy and his parents kneading dough at kitchen — Stock Photo
    Cute little boy and his parents kneading dough at kitchen
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual computer illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual computer illustration.
    Wind farm in Northern India; Rajasthan, India — Stock Photo
    Wind farm in Northern India; Rajasthan, India
    Motorcycles running on typical street in Hanoi — Stock Photo
    Motorcycles running on typical street in Hanoi
    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
    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.
    Vintage old car parked at urban street — Stock Photo
    Vintage old car parked at urban street
    Woman and her grandson smiling at each other — Stock Photo
    Woman and her grandson smiling at each other
    Young girl standing holding a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Young girl standing holding a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Abstract structure of neural network on dark background, digital illustration. — Stock Photo
    Abstract structure of neural network on dark background, digital illustration.
    Transmission Towers and Power Lines — Stock Photo
    Transmission Towers and Power Lines
    Woman sewing a medical mask during the Covid-19 World Pandemic; Edmonton, Alberta, Canada — Stock Photo
    Woman sewing a medical mask during the Covid-19 World Pandemic; Edmonton, Alberta, Canada
    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
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Mucosa of the trachea — Stock Photo
    Mucosa of the trachea
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is blue. Mitochondria (cyan)) in the cell's cytoplasm produce energy for the cell. Lysosomes (red) contain enzymes for digesting foreign particles. M — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is blue. Mitochondria (cyan)) in the cell's cytoplasm produce energy for the cell. Lysosomes (red) contain enzymes for digesting foreign particles. M
    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    Wildflowers Blooming On Tejon Ranch — Stock Photo
    Wildflowers Blooming On Tejon Ranch
    Cute little boy and his parents kneading dough at kitchen — Stock Photo
    Cute little boy and his parents kneading dough at kitchen
    Grandmother and little boy peeling an apple at kitchen — Stock Photo
    Grandmother and little boy peeling an apple at kitchen
    Grandmother cooking food and little boy peeling an apple at home — Stock Photo
    Grandmother cooking food and little boy peeling an apple at home
    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
    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, 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.
    Man wearing a mask and gloves holding his hands on his head as he walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada — Stock Photo
    Man wearing a mask and gloves holding his hands on his head as he walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    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
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    Abstract structure of neural network on dark background, digital illustration. — Stock Photo
    Abstract structure of neural network on dark background, digital illustration.
    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
    Boy embracing smiling senior man, looking at camera — Stock Photo
    Boy embracing smiling senior man, looking at camera
    High voltage tower, electricity pylon, blue sky — Stock Photo
    High voltage tower, electricity pylon, blue sky
    Stylish woman using ticket vending machine at station — Stock Photo
    Stylish woman using ticket vending machine at station
    Helicobacter pylori bacterium — Stock Photo
    Helicobacter pylori bacterium
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    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
    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
    Abstract structure of neural network on dark background, digital illustration. — Stock Photo
    Abstract structure of neural network on dark background, digital illustration.