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    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.
    Digital illustration of cancerous tumor in lungs and close-up of lung cancer cells. — Stock Photo
    Digital illustration of cancerous tumor in lungs and close-up of lung cancer cells.
    Close up view of vet holding lizard — Stock Photo
    Close up view of vet holding lizard
    Neutrophil white blood cell, digital illustration. — Stock Photo
    Neutrophil white blood cell, digital illustration.
    MERS virus infection of lungs, conceptual illustration. — Stock Photo
    MERS virus infection of lungs, conceptual illustration.
    Erythrocyte red blood cell, digital illustration. — Stock Photo
    Erythrocyte red blood cell, digital illustration.
    Highlighted cavern in lung with well-formed fibrous layer, digital artwork. — Stock Photo
    Highlighted cavern in lung with well-formed fibrous layer, digital artwork.
    Connection between brain and stomach while appetite, conceptual illustration. — Stock Photo
    Connection between brain and stomach while appetite, conceptual illustration.
    In vitro fertilization process, digital artwork. — Stock Photo
    In vitro fertilization process, digital artwork.
    Illustration of Staphylococcal neurodermatitis bacterial infection of skin. — Stock Photo
    Illustration of Staphylococcal neurodermatitis bacterial infection of skin.
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Human lungs with pneumonia and close-up of bacteria and viruses. — Stock Photo
    Human lungs with pneumonia and close-up of bacteria and viruses.
    Human lungs with viral pneumonia and close-up of virions. — Stock Photo
    Human lungs with viral pneumonia and close-up of virions.
    Human silhouette with lungs infected by pneumonia caused by flu, illustration. — Stock Photo
    Human silhouette with lungs infected by pneumonia caused by flu, illustration.
    Comparison of healthy and smoker lungs, digital illustration. — Stock Photo
    Comparison of healthy and smoker lungs, digital illustration.
    Female nurse holding oxygen mask over male patient's mouth in intensive care unit — Stock Photo
    Female nurse holding oxygen mask over male patient's mouth in intensive care unit
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria.
    Human silhouette with infected lungs with Pulmonary blastomycosis and close-up of Blastomyces dermatitidis fungus particles. — Stock Photo
    Human silhouette with infected lungs with Pulmonary blastomycosis and close-up of Blastomyces dermatitidis fungus particles.
    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.
    Human silhouette with detailed lungs, digital illustration. — Stock Photo
    Human silhouette with detailed lungs, digital illustration.
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor. — Stock Photo
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor.
    Tropheryma whipplei causative bacteria in human duodenum, digital illustration. — Stock Photo
    Tropheryma whipplei causative bacteria in human duodenum, digital illustration.
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria.
    Miliary tuberculosis in human lungs, digital illustration. — Stock Photo
    Miliary tuberculosis in human lungs, digital illustration.
    Digital illustration of parasitic hookworm Ancylostoma duodenale in small intestine. — Stock Photo
    Digital illustration of parasitic hookworm Ancylostoma duodenale in small intestine.
    Japanese encephalitis virus particles, digital illustration. — Stock Photo
    Japanese encephalitis virus particles, digital illustration.
    MERS virus infection of lungs, conceptual illustration. — Stock Photo
    MERS virus infection of lungs, conceptual illustration.
    MERS virus infection of lungs, conceptual illustration. — Stock Photo
    MERS virus infection of lungs, conceptual illustration.
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores. — Stock Photo
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores.
    Silhouette of human brain on plain background, digital illustration. — Stock Photo
    Silhouette of human brain on plain background, digital illustration.
    Human lungs with bacterial pneumonia and close-up of bacteria. — Stock Photo
    Human lungs with bacterial pneumonia and close-up of bacteria.
    Close-up of adenovirus infecting human lungs, digital illustration. — Stock Photo
    Close-up of adenovirus infecting human lungs, digital illustration.
    Japanese encephalitis virus particles, digital illustration. — Stock Photo
    Japanese encephalitis virus particles, digital illustration.
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria.
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection. — Stock Photo
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection.
    Human silhouette with infected lungs with Pulmonary blastomycosis and close-up of Blastomyces dermatitidis fungus particles. — Stock Photo
    Human silhouette with infected lungs with Pulmonary blastomycosis and close-up of Blastomyces dermatitidis fungus particles.
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores. — Stock Photo
    Human silhouette with Pneumocystis pneumonia and close-up of fungus spores.
    Surgeon in rubber gloves preparing surgical instruments on tray — Stock Photo
    Surgeon in rubber gloves preparing surgical instruments on tray
    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.
    Human skull on white background, digital illustration. — Stock Photo
    Human skull on white background, digital illustration.
    Close-up of adenovirus infecting human lungs, digital illustration. — Stock Photo
    Close-up of adenovirus infecting human lungs, digital illustration.
    Veterinarian examining cat mouth in veterinary surgery — Stock Photo
    Veterinarian examining cat mouth in veterinary surgery
    Rotavirus particles infecting human intestine, digital artwork. — Stock Photo
    Rotavirus particles infecting human intestine, digital artwork.
    Nurse arranging surgical instruments on tray in operating room — Stock Photo
    Nurse arranging surgical instruments on tray in operating room
    Human lungs with viral pneumonia and close-up of virions. — Stock Photo
    Human lungs with viral pneumonia and close-up of virions.
    Brain infection caused by Streptococcus pneumoniae bacteria, digital illustration. — Stock Photo
    Brain infection caused by Streptococcus pneumoniae bacteria, digital illustration.
    Silhouette of unhealthy smoker lungs, digital illustration. — Stock Photo
    Silhouette of unhealthy smoker lungs, digital illustration.
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection. — Stock Photo
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection.
    Lymph node with filaria nematode worms, digital illustration — Stock Photo
    Lymph node with filaria nematode worms, digital illustration
    Nurse reading older patient medical bracelet in hospital — Stock Photo
    Nurse reading older patient medical bracelet in hospital
    Grey textured human brain on white background, digital illustration. — Stock Photo
    Grey textured human brain on white background, digital illustration.
    Close-up of man holding blister pack — Stock Photo
    Close-up of man holding blister pack
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria. — Stock Photo
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria.
    Close-up of man removing bandage — Stock Photo
    Close-up of man removing bandage
    Human intestine and close-up of Campylobacter jejuni bacteria causing Campylobacteriosis, conceptual illustration. — Stock Photo
    Human intestine and close-up of Campylobacter jejuni bacteria causing Campylobacteriosis, conceptual illustration.
    Close-up of parasitic amoeba in human intestine, digital artwork. — Stock Photo
    Close-up of parasitic amoeba in human intestine, digital artwork.
    Conceptual illustration of association of Bacteroides massiliensis bacteria in intestine with prostate cancer development. — Stock Photo
    Conceptual illustration of association of Bacteroides massiliensis bacteria in intestine with prostate cancer development.
    Stomach cancer in human body, digital illustration. — Stock Photo
    Stomach cancer in human body, digital illustration.
    Close-up of parasitic amoeba in human intestine, digital artwork. — Stock Photo
    Close-up of parasitic amoeba in human intestine, digital artwork.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.