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    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles. — Stock Photo
    Infected droplet. 3D illustration showing one respiratory droplet containing coronavirus particles.
    COVID-19, Coronavirus, group of viruses in worldwide pandemic concept — Stock Photo
    COVID-19, Coronavirus, group of viruses in worldwide pandemic concept
    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
    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
    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
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    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
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    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
    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
    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
    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
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Feline caliciviruses particles — Stock Photo
    Feline caliciviruses particles
    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.
    Influenza viruses and host cell — Stock Photo
    Influenza viruses and host cell
    Bacteria Erysipelothrix rhusiopathiae — Stock Photo
    Bacteria Erysipelothrix rhusiopathiae
    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
    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
    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
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background. — Stock Photo
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background.
    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.
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell