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    3d illustration of a Salmonella sp. bacterium showing internal structure — Stock Photo
    3d illustration of a Salmonella sp. bacterium showing internal structure
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    Blood pressure and circulatory system — Stock Photo
    Blood pressure and circulatory system
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    Medical illustration of bacteria in human intestine. — Stock Photo
    Medical illustration of bacteria in human intestine.
    Digital illustration showing bacteria causing infections of respiratory system, heart and digestive tract, Mycobacterium tuberculosis, Enterococcus faecalis, Salmonella, Shigella. — Stock Photo
    Digital illustration showing bacteria causing infections of respiratory system, heart and digestive tract, Mycobacterium tuberculosis, Enterococcus faecalis, Salmonella, Shigella.
    Illustration of lungs in male body silhouette on black background. — Stock Photo
    Illustration of lungs in male body silhouette on black background.
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia. — Stock Photo
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia.
    Human large intestine tissue, light micrograph. — Stock Photo
    Human large intestine tissue, light micrograph.
    Digital illustration of colon in senior man body. — Stock Photo
    Digital illustration of colon in senior man body.
    Mid section illustration of lungs in male body silhouette. — Stock Photo
    Mid section illustration of lungs in male body silhouette.
    Early stage of kidney cancer with a tumor on the kidney — Stock Photo
    Early stage of kidney cancer with a tumor on the kidney
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants — Stock Photo
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants
    Visible lungs in realistic female body 3d model on white background, computer illustration. — Stock Photo
    Visible lungs in realistic female body 3d model on white background, computer illustration.
    Transparent male silhouette with visible large intestine, computer illustration. — Stock Photo
    Transparent male silhouette with visible large intestine, computer illustration.
    Lung cancer in female realistic body 3d model, conceptual computer illustration. — Stock Photo
    Lung cancer in female realistic body 3d model, conceptual computer illustration.
    Lung cancer in female transparent body, conceptual computer illustration. — Stock Photo
    Lung cancer in female transparent body, conceptual computer illustration.
    Lung tumour in female body on blue background, digital illustration. — Stock Photo
    Lung tumour in female body on blue background, digital illustration.
    Illustration of silhouette of obese man with visible lungs. — Stock Photo
    Illustration of silhouette of obese man with visible lungs.
    Anatomy of human body showing whole organs — Stock Photo
    Anatomy of human body showing whole organs
    Digital illustration of colon in senior man body. — Stock Photo
    Digital illustration of colon in senior man body.
    Illustration of transparent blue silhouette of male body with colored small intestine. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored small intestine.
    3D rendering of human lungs with respiratory tree and diaphragm — Stock Photo
    3D rendering of human lungs with respiratory tree and diaphragm
    Colored large intestine in female body silhouette, digital illustration. — Stock Photo
    Colored large intestine in female body silhouette, digital illustration.
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    Egg of Enterobius vermicularis threadworm containing worm larva, causative agent of enterobiasis, computer illustration. — Stock Photo
    Egg of Enterobius vermicularis threadworm containing worm larva, causative agent of enterobiasis, computer illustration.
    Illustration of senior man silhouette with visible colon. — Stock Photo
    Illustration of senior man silhouette with visible colon.
    Male anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Male anatomy with orange colored large intestine, digital illustration.
    Bacterial cystitis, illustration. Cystitis (inflammation of the bladder) can be caused by the bacterium E. coli (red). — Stock Photo
    Bacterial cystitis, illustration. Cystitis (inflammation of the bladder) can be caused by the bacterium E. coli (red).
    Digital illustration showing close-up of ciliate protozoan Balantidium coli intestinal parasite causing balantidiasis ulcer in human intestinal tract. — Stock Photo
    Digital illustration showing close-up of ciliate protozoan Balantidium coli intestinal parasite causing balantidiasis ulcer in human intestinal tract.
    Illustration of senior man silhouette with visible lung cancer. — Stock Photo
    Illustration of senior man silhouette with visible lung cancer.
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Illustration of figure of obese man with visible lungs. — Stock Photo
    Illustration of figure of obese man with visible lungs.
    Diseased bladder in transparent female body model, conceptual illustration. — Stock Photo
    Diseased bladder in transparent female body model, conceptual illustration.
    Illustration of cancerous tumour in female lung. — Stock Photo
    Illustration of cancerous tumour in female lung.
    3d rendered illustration of colored female lungs in body silhouette. — Stock Photo
    3d rendered illustration of colored female lungs in body silhouette.
    Pneumonia caused by bacteria Moraxella catarrhalis, digital illustration. — Stock Photo
    Pneumonia caused by bacteria Moraxella catarrhalis, digital illustration.
    Digital illustration of rod-shaped bacteria inside alveoli of lung causing Bacterial pneumonia. — Stock Photo
    Digital illustration of rod-shaped bacteria inside alveoli of lung causing Bacterial pneumonia.
    Healthy intestinal villi — Stock Photo
    Healthy intestinal villi
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Lungs in anatomy of male body, computer illustration. — Stock Photo
    Lungs in anatomy of male body, computer illustration.
    Orange colored bladder in male body silhouette, computer illustration. — Stock Photo
    Orange colored bladder in male body silhouette, computer illustration.
    Orange colored lungs in female body silhouette, computer illustration. — Stock Photo
    Orange colored lungs in female body silhouette, computer illustration.
    Illustration of colon in transparent male silhouette. — Stock Photo
    Illustration of colon in transparent male silhouette.
    3d rendered illustration of colored female colon in body silhouette. — Stock Photo
    3d rendered illustration of colored female colon in body silhouette.
    Digital illustration of transparent elderly man body with visible orange-colored ureters. — Stock Photo
    Digital illustration of transparent elderly man body with visible orange-colored ureters.
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    Female abdominal anatomy and internal organs, computer illustration. — Stock Photo
    Female abdominal anatomy and internal organs, computer illustration.
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Colorful rhinovirus particles in 360-degree panorama view, digital illustration. — Stock Photo
    Colorful rhinovirus particles in 360-degree panorama view, digital illustration.
    Diseased lungs in transparent male body on black background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on black background, computer illustration.
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Transparent male silhouette with colored bronchi, computer illustration. — Stock Photo
    Transparent male silhouette with colored bronchi, computer illustration.
    Illustration of female silhouette with highlighted colon infection. — Stock Photo
    Illustration of female silhouette with highlighted colon infection.
    Colored large intestine in female body silhouette, digital illustration. — Stock Photo
    Colored large intestine in female body silhouette, digital illustration.
    Colored scanning electron micrograph of cancer cells from human colon. — Stock Photo
    Colored scanning electron micrograph of cancer cells from human colon.
    Illustration of silhouette of obese man with highlighted lung tumor. — Stock Photo
    Illustration of silhouette of obese man with highlighted lung tumor.
    3d illustration of Salmonella sp. bacteria showing internal structure — Stock Photo
    3d illustration of Salmonella sp. bacteria showing internal structure
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    Orange colored lungs in male body silhouette, computer illustration. — Stock Photo
    Orange colored lungs in male body silhouette, computer illustration.