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    Man wearing a mask and gloves walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada — Stock Photo
    Man wearing a mask and gloves walking on a path by the Legislature during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    Mature virus and budding release of HIV — Stock Photo
    Mature virus and budding release of HIV
    Low angle view, crossing wires overhead, telegraph pole, infrastructure — Stock Photo
    Low angle view, crossing wires overhead, telegraph pole, infrastructure
    Transmission Line By Road — Stock Photo
    Transmission Line By Road
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    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.
    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
    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.
    Chicken eggs in carton and close-up of Listeria monocytogenes bacteria. — Stock Photo
    Chicken eggs in carton and close-up of Listeria monocytogenes bacteria.
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( blue) is an insulating fatty layer that surrounds the myelinated nerve fibres (pink) — Stock Photo
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( blue) is an insulating fatty layer that surrounds the myelinated nerve fibres (pink)
    Power pylon on country plains under clouds in Texas, USA — Stock Photo
    Power pylon on country plains under clouds in Texas, USA
    Cilia covering the epithelial lining of the nasopharyx — Stock Photo
    Cilia covering the epithelial lining of the nasopharyx
    From below big red telecommunication tower on background of cloudy sky. — Stock Photo
    From below big red telecommunication tower on background of cloudy sky.
    Radio tower against starry sky — Stock Photo
    Radio tower against starry sky
    Old man working in pandemic quarantine — Stock Photo
    Old man working in pandemic quarantine
    Clouds over satellite dishes, South Boston, Suffolk County, Massachusetts, USA — Stock Photo
    Clouds over satellite dishes, South Boston, Suffolk County, Massachusetts, USA
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of HIV infecting 8 week human embryo, conceptual illustration.
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    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
    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    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
    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.
    Zika virus particles — Stock Photo
    Zika virus particles
    Aerial view of a road winding through farmland divided into green and brown, with an electricity transmission line running across; Colorado, United States of America — Stock Photo
    Aerial view of a road winding through farmland divided into green and brown, with an electricity transmission line running across; Colorado, United States of America
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.
    Neural network connections and nerve cells, digital illustration. — Stock Photo
    Neural network connections and nerve cells, digital illustration.
    Road Through A Rural Area — Stock Photo
    Road Through A Rural Area
    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
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    Classic car at high speed — Stock Photo
    Classic car at high speed
    Stylish woman using ticket vending machine at station — Stock Photo
    Stylish woman using ticket vending machine at station
    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.
    Power line with industrial chimney — Stock Photo
    Power line with industrial chimney
    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
    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 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
    Man wearing a mask and gloves standing 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 standing on a path outside using his smart phone during the Covid-19 world pandemic; Edmonton, Alberta, Canada
    Covid-19, Coronavirus. Several covid-19 viruses infecting the human organism. Concept image of the virus inside human cells. — Stock Photo
    Covid-19, Coronavirus. Several covid-19 viruses infecting the human organism. Concept image of the virus inside human cells.
    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
    Power pylon under clouds in Texas, USA — Stock Photo
    Power pylon under clouds in Texas, USA
    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
    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.
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery. — Stock Photo
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery.
    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
    Old man working in pandemic quarantine — Stock Photo
    Old man working in pandemic quarantine
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain. — Stock Photo
    Digital illustration of pyramidal nerve cells from cerebral cortex of brain.
    Low angle view of modern building facade with small satellites systems. — Stock Photo
    Low angle view of modern building facade with small satellites systems.
    Chicken eggs and microscopic image of salmonella bacteria causing salmonellosis. — Stock Photo
    Chicken eggs and microscopic image of salmonella bacteria causing salmonellosis.
    Pilot operating airplane in cockpit — Stock Photo
    Pilot operating airplane in cockpit
    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
    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.
    Salmonella typhimurium bacterium — Stock Photo
    Salmonella typhimurium bacterium
    View of abandoned truck — Stock Photo
    View of abandoned truck
    AERIAL: Drone Shot of old Abandones Radio Tower Station in Rich Green Forest surrounded by Trees HQ — Stock Photo
    AERIAL: Drone Shot of old Abandones Radio Tower Station in Rich Green Forest surrounded by Trees HQ
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    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