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    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    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)
    Zika virus particles — Stock Photo
    Zika virus particles
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    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.
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Dramatic rocky cliffs along the shoreline with the orange glow of sunset; Cornwall County, England — Stock Photo
    Dramatic rocky cliffs along the shoreline with the orange glow of sunset; Cornwall County, England
    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
    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
    Senior man and boy holding model boat outdoors — Stock Photo
    Senior man and boy holding model boat outdoors
    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
    Grandmother and little boy peeling an apple at home — Stock Photo
    Grandmother and little boy peeling an apple at home
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    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
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland — Stock Photo
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland
    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
    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
    Wildflowers Blooming On Tejon Ranch — Stock Photo
    Wildflowers Blooming On Tejon Ranch
    Roadside sign saying 'Please Stay Home' during the isolation of Covid-19 world pandemic; St. Albert, Alberta, Canada — Stock Photo
    Roadside sign saying 'Please Stay Home' during the isolation of Covid-19 world pandemic; St. Albert, Alberta, Canada
    A truck leaving a dusty trail when turning off one country road to another surrounded by farm fields with an electricity transmission line running across; Colorado, United States of America — Stock Photo
    A truck leaving a dusty trail when turning off one country road to another surrounded by farm fields with an electricity transmission line running across; Colorado, United States of America
    Abstract structure of neural network on dark background, digital illustration. — Stock Photo
    Abstract structure of neural network on dark background, digital illustration.
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Boy embracing smiling senior man, looking at camera — Stock Photo
    Boy embracing smiling senior man, looking at camera
    Power pylons and lines on rocky mountains — Stock Photo
    Power pylons and lines on rocky mountains
    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)
    High voltage transmission lines at west of Clinton, British Columbia, Canada — Stock Photo
    High voltage transmission lines at west of Clinton, British Columbia, Canada
    Radio tower against starry sky — Stock Photo
    Radio tower against starry sky
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    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
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue. — Stock Photo
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue.
    Father and son fishing in a lake — Stock Photo
    Father and son fishing in a lake
    Network mesh with connected lines, digital abstract illustration. — Stock Photo
    Network mesh with connected lines, digital abstract 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
    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
    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
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    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
    Motorcycles running on typical street in Hanoi — Stock Photo
    Motorcycles running on typical street in Hanoi
    A dog sitting on a sidewalk holding a face mask in mouth during the Covid-19 world pandemic; Edmonton, Alberta, Canada — Stock Photo
    A dog sitting on a sidewalk holding a face mask in mouth during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    Abstract structure of neural network on light background, digital illustration. — Stock Photo
    Abstract structure of neural network on light background, digital illustration.
    Bottom view of black wires and high voltage power pole on background of dark cloudy sky. — Stock Photo
    Bottom view of black wires and high voltage power pole on background of dark cloudy sky.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    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.
    Mature virus and budding release of HIV — Stock Photo
    Mature virus and budding release of HIV
    Woman using automatic vending machine at railway station — Stock Photo
    Woman using automatic vending machine at railway station
    Wooden pylon supporting power lines against sunlight. — Stock Photo
    Wooden pylon supporting power lines against sunlight.
    Young girl standing holding protective mask in her hands during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Young girl standing holding protective mask in her hands during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( brown) is an insulating fatty layer that surrounds the myelinated nerve fibres (blue) — Stock Photo
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( brown) is an insulating fatty layer that surrounds the myelinated nerve fibres (blue)
    Grandmother and little boy peeling fruit at home — Stock Photo
    Grandmother and little boy peeling fruit at home
    Bacteria Erysipelothrix rhusiopathiae — Stock Photo
    Bacteria Erysipelothrix rhusiopathiae
    Grandmother cooking food and little boy peeling an apple at home — Stock Photo
    Grandmother cooking food and little boy peeling an apple at home
    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
    Young girl standing wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Young girl standing wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    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
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    Hepatitis C virus particles, digital illustration. — Stock Photo
    Hepatitis C virus particles, digital illustration.
    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.