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    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
    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
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Crop view of anonymous man with her hand on the gear shift of an off-road car — Stock Photo
    Crop view of anonymous man with her hand on the gear shift of an off-road car
    Dramatic rocky cliffed shoreline with the glow of sunset with large white satellite dishes in the background; Cornwall County, England — Stock Photo
    Dramatic rocky cliffed shoreline with the glow of sunset with large white satellite dishes in the background; Cornwall County, England
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    High voltage transmission lines at west of Clinton, British Columbia, Canada — Stock Photo
    High voltage transmission lines at west of Clinton, British Columbia, Canada
    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.
    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
    Influenza viruses and host cell — Stock Photo
    Influenza viruses and host cell
    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
    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
    Wooden pylons supporting powerlines across sand dunes in United Arab Emirates. — Stock Photo
    Wooden pylons supporting powerlines across sand dunes in United Arab Emirates.
    Power pylon under clouds in Texas, USA — Stock Photo
    Power pylon under clouds in Texas, USA
    Men wearing masks and gloves walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada — Stock Photo
    Men wearing masks and gloves walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    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
    Communications tower in field in Oregon, United States — Stock Photo
    Communications tower in field in Oregon, United States
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Classic car at high speed — Stock Photo
    Classic car at high speed
    Young girl standing at a playground wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada — Stock Photo
    Young girl standing at a playground wearing a protective mask to protect against COVID-19 during the Coronavirus World Pandemic; Toronto, Ontario, Canada
    Pilot operating airplane in cockpit — Stock Photo
    Pilot operating airplane in cockpit
    Cute little boy and his parents kneading dough at kitchen — Stock Photo
    Cute little boy and his parents kneading dough at kitchen
    Wind turbines in a row along a ridge of a rugged landscape, near Kihei: Kihei, Maui, Hawaii, United States of America — Stock Photo
    Wind turbines in a row along a ridge of a rugged landscape, near Kihei: Kihei, Maui, Hawaii, United States of America
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration
    3d illustration of Coxiella burnetii bacteria. This bacterium affects humans and other animals such as cattle, sheep, goats, cats and dogs. It is the cause of Q fever, a highly infectious, influenza-like, febrile illness — Stock Photo
    3d illustration of Coxiella burnetii bacteria. This bacterium affects humans and other animals such as cattle, sheep, goats, cats and dogs. It is the cause of Q fever, a highly infectious, influenza-like, febrile illness
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland — Stock Photo
    Pipeline in Eastern Iceland; Skutustadahreppur, Northeastern Region, Iceland
    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
    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.
    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.
    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
    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 HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Nerve cells and axons — Stock Photo
    Nerve cells and axons
    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
    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.
    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
    Power pylon on country plains under clouds in Texas, USA — Stock Photo
    Power pylon on country plains under clouds in Texas, USA
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    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
    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
    Grandmother and little boy smelling honey at kitchen — Stock Photo
    Grandmother and little boy smelling honey at kitchen
    Feline caliciviruses particles — Stock Photo
    Feline caliciviruses particles
    Neural network connections and nerve cells, digital illustration. — Stock Photo
    Neural network connections and nerve cells, digital 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.
    Sign for Take-Away food on a red door during national lockdown, Covid-19 Global Pandemic; London, England — Stock Photo
    Sign for Take-Away food on a red door during national lockdown, Covid-19 Global Pandemic; London, England
    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.
    Grandmother and little boy cooking food at kitchen — Stock Photo
    Grandmother and little boy cooking food at kitchen
    Mature virus and budding release of HIV — Stock Photo
    Mature virus and budding release of HIV
    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
    Grandmother and little boy peeling fruit at home — Stock Photo
    Grandmother and little boy peeling fruit at home
    Helicobacter pylori bacterium — Stock Photo
    Helicobacter pylori bacterium
    Abstract structure of neural network on dark background, digital illustration. — Stock Photo
    Abstract structure of neural network on dark background, digital illustration.
    From below big red telecommunication tower on background of cloudy sky. — Stock Photo
    From below big red telecommunication tower on background of cloudy 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.
    Coxsackie viruse particles. — Stock Photo
    Coxsackie viruse particles.
    Cables for public transportation in low angle view — Stock Photo
    Cables for public transportation in low angle view