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    Man examining a large plank of cut wood — Stock Photo
    Man examining a large plank of cut wood
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph.
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Emergency team pushing hospital gurney with patient in corridor. — Stock Photo
    Emergency team pushing hospital gurney with patient in corridor.
    Digital illustration of Mycobacterium tuberculosis gram-positive rod-shaped bacteria which causing disease tuberculosis. — Stock Photo
    Digital illustration of Mycobacterium tuberculosis gram-positive rod-shaped bacteria which causing disease tuberculosis.
    Patient with a heart pacemaker — Stock Photo
    Patient with a heart pacemaker
    Abstract measles virus particle on white background, digital cutout illustration. — Stock Photo
    Abstract measles virus particle on white background, digital cutout illustration.
    Man leaning against a truck — Stock Photo
    Man leaning against a truck
    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration — Stock Photo
    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration
    Red cancer cells, digital illustration. — Stock Photo
    Red cancer cells, digital illustration.
    Whooping cough contagious infectious lungs disease and close-up of Bordetella pertussis bacteria. — Stock Photo
    Whooping cough contagious infectious lungs disease and close-up of Bordetella pertussis bacteria.
    People watching colony of Penguins — Stock Photo
    People watching colony of Penguins
    Covid-19 coronavirus particle, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019 — Stock Photo
    Covid-19 coronavirus particle, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019
    Disabled man pouring coffee into cup at home — Stock Photo
    Disabled man pouring coffee into cup at home
    Digital illustration of abstract coronavirus particles. — Stock Photo
    Digital illustration of abstract coronavirus particles.
    Digital illustration of head of parasitic hookworm Ancylostoma duodenale in small intestine. — Stock Photo
    Digital illustration of head of parasitic hookworm Ancylostoma duodenale in small intestine.
    Digital illustration of abnormal blood cells infected by hairy cell leukemia. — Stock Photo
    Digital illustration of abnormal blood cells infected by hairy cell leukemia.
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores. — Stock Photo
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores.
    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.
    Macrophage foam cells containing lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells containing lipid droplets, digital illustration.
    Medical illustration of stomach cancer in female silhouette. — Stock Photo
    Medical illustration of stomach cancer in female silhouette.
    Digital illustration of human hair with dandruff. — Stock Photo
    Digital illustration of human hair with dandruff.
    Covid-19 coronavirus particle, computer illustration — Stock Photo
    Covid-19 coronavirus particle, computer illustration
    Diseased lungs in transparent male body on white background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on white background, computer illustration.
    Abstract green colored cancer cell on black background, digital illustration. — Stock Photo
    Abstract green colored cancer cell on black background, digital illustration.
    Desert landscape with sand dunes — Stock Photo
    Desert landscape with sand dunes
    Coronavirus particles, computer illustration — Stock Photo
    Coronavirus particles, computer illustration
    Plague bacteria (Yersinia pestis), computer illustration. Y. pestis are gram-negative bacteria from the Enterobacteriaceae family, they have an ovoid shape with bipolar staining (more intensively stained at poles) — Stock Photo
    Plague bacteria (Yersinia pestis), computer illustration. Y. pestis are gram-negative bacteria from the Enterobacteriaceae family, they have an ovoid shape with bipolar staining (more intensively stained at poles)
    People wading into the ocean — Stock Photo
    People wading into the ocean
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Digital artwork of illuminated red human cancer cell. — Stock Photo
    Digital artwork of illuminated red human cancer cell.
    Illustration of human silhouette with painful kidney. — Stock Photo
    Illustration of human silhouette with painful kidney.
    Plasmodium malariae protozoan and red blood cells in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoan and red blood cells in blood vessel, computer illustration.
    Dementia, conceptual computer illustration — Stock Photo
    Dementia, conceptual computer illustration
    Illustration of Streptococcus pneumoniae bacteria inside alveoli of lungs causing pneumonia. — Stock Photo
    Illustration of Streptococcus pneumoniae bacteria inside alveoli of lungs causing pneumonia.
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Young woman receiving beauty treatment using high frequency machine in clinic. — Stock Photo
    Young woman receiving beauty treatment using high frequency machine in clinic.
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Listeria monocytogenes bacteria, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis — Stock Photo
    Listeria monocytogenes bacteria, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    MERS virus infection of lungs, conceptual illustration. — Stock Photo
    MERS virus infection of lungs, conceptual illustration.
    Coronavirus infection, conceptual illustration. — Stock Photo
    Coronavirus infection, conceptual illustration.
    Abstract runner silhouette with knee pain, conceptual computer illustration. — Stock Photo
    Abstract runner silhouette with knee pain, conceptual computer illustration.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Cancer cell, computer illustration — Stock Photo
    Cancer cell, computer illustration
    Baker holding dough — Stock Photo
    Baker holding dough
    3D computer illustration of blastocystis hominis parasites, causative agents of diarrheal infection. — Stock Photo
    3D computer illustration of blastocystis hominis parasites, causative agents of diarrheal infection.
    Abstract male body with appendix cancer, computer illustration. — Stock Photo
    Abstract male body with appendix cancer, computer illustration.
    Covid-19 pandemic, conceptual illustration — Stock Photo
    Covid-19 pandemic, conceptual illustration
    3D computer illustration of blastocystis hominis parasites, causative agents of diarrheal infection. — Stock Photo
    3D computer illustration of blastocystis hominis parasites, causative agents of diarrheal infection.
    Lung cancer, digital illustration and light micrograph of cancerous tissue. — Stock Photo
    Lung cancer, digital illustration and light micrograph of cancerous tissue.
    Illustration of female silhouette with highlighted lung cancer. — Stock Photo
    Illustration of female silhouette with highlighted lung cancer.
    Illustration of abstract conceptual cancer monster. — Stock Photo
    Illustration of abstract conceptual cancer monster.
    Group of people in a rubber boat in the Antarctic. — Stock Photo
    Group of people in a rubber boat in the Antarctic.
    Diseased lungs in transparent male body on white background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on white background, computer illustration.
    Plasmodium vivax protozoa and red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoa and red blood cells, digital illustration.
    Medical illustration of fat inside of human artery. — Stock Photo
    Medical illustration of fat inside of human artery.
    Abstract red colored cancer cell on black background, digital illustration. — Stock Photo
    Abstract red colored cancer cell on black background, digital illustration.
    Instructor discussing air conditioner recharging with student in wheelchair in HVAC classroom — Stock Photo
    Instructor discussing air conditioner recharging with student in wheelchair in HVAC classroom