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    Male anatomy with orange colored small intestine, digital illustration. — Stock Photo
    Male anatomy with orange colored small intestine, digital illustration.
    Digital illustration of threadworm in human intestine. — Stock Photo
    Digital illustration of threadworm in human intestine.
    Microbiota of human intestine, abstract digital 3d illustration. — Stock Photo
    Microbiota of human intestine, abstract digital 3d illustration.
    Digital illustration of yeast and hyphae stages of Candida albicans fungus. — Stock Photo
    Digital illustration of yeast and hyphae stages of Candida albicans fungus.
    Illustration of small intestine in male body silhouette on black background. — Stock Photo
    Illustration of small intestine in male body silhouette on black background.
    Illustration of small intestine in human body silhouette. — Stock Photo
    Illustration of small intestine in human body silhouette.
    Enterobius vermicularis threadworm eggs containing worm larvae, causative agent of enterobiasis, computer illustration. — Stock Photo
    Enterobius vermicularis threadworm eggs containing worm larvae, causative agent of enterobiasis, computer illustration.
    Illustration of internal organs in transparent male silhouette. — Stock Photo
    Illustration of internal organs in transparent male silhouette.
    Healthy large intestines — Stock Photo
    Healthy large intestines
    Male silhouette with visible small intestine in midsection, digital illustration. — Stock Photo
    Male silhouette with visible small intestine in midsection, digital illustration.
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration.
    Illustration of female silhouette with highlighted intestines. — Stock Photo
    Illustration of female silhouette with highlighted intestines.
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    Medical artwork showing intestinal villi in bowel. — Stock Photo
    Medical artwork showing intestinal villi in bowel.
    Tetanus bacteria, illustration. Clostridium tetani is a gram-positive, spore-forming, anaerobic bacillus (rod-shaped bacterium) that causes tetanus. Members of the Clostridium genus exist as soil saprophytes and as intestinal parasites of animals — Stock Photo
    Tetanus bacteria, illustration. Clostridium tetani is a gram-positive, spore-forming, anaerobic bacillus (rod-shaped bacterium) that causes tetanus. Members of the Clostridium genus exist as soil saprophytes and as intestinal parasites of animals
    Intestinal lining. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called villi. The intestinal surface( yellow) is exposed to food — Stock Photo
    Intestinal lining. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called villi. The intestinal surface( yellow) is exposed to food
    Group of Trichomonas hominis protozoan parasites, digital illustration. — Stock Photo
    Group of Trichomonas hominis protozoan parasites, digital illustration.
    Realistic body model showing female anatomy on blue background, computer illustration. — Stock Photo
    Realistic body model showing female anatomy on blue background, computer illustration.
    Female anatomical figure with detailed large intestine, computer illustration. — Stock Photo
    Female anatomical figure with detailed large intestine, computer illustration.
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration.
    Small pouches in the large intestine — Stock Photo
    Small pouches in the large intestine
    Illustration of colon cancer in male body silhouette on black background. — Stock Photo
    Illustration of colon cancer in male body silhouette on black background.
    Female anatomy with orange colored small intestine, digital illustration. — Stock Photo
    Female anatomy with orange colored small intestine, digital illustration.
    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.
    Abstract male body with small intestine cancer, computer illustration. — Stock Photo
    Abstract male body with small intestine cancer, computer illustration.
    Digital labelled illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Hepatitis A, Rotaviruses. — Stock Photo
    Digital labelled illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Hepatitis A, Rotaviruses.
    Illustration of human silhouette with inflamed colon. — Stock Photo
    Illustration of human silhouette with inflamed colon.
    Dog roundworm parasite — Stock Photo
    Dog roundworm parasite
    Intestinal villi, computer illustration — Stock Photo
    Intestinal villi, computer illustration
    Bacteria found in a sample of human faeces — Stock Photo
    Bacteria found in a sample of human faeces
    Digital illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Hepatitis B, Salmonella. — Stock Photo
    Digital illustration showing bacteria causing infections of respiratory and digestive system, Mycobacterium tuberculosis, Helicobacter pylori, Hepatitis B, Salmonella.
    E. coli bacteria, illustration. Escherichia coli is a rod-shaped bacterium (bacillus). Its cell membrane is covered in fine filaments called pili or fimbriae — Stock Photo
    E. coli bacteria, illustration. Escherichia coli is a rod-shaped bacterium (bacillus). Its cell membrane is covered in fine filaments called pili or fimbriae
    Illustration of ascariasis worm on black background. — Stock Photo
    Illustration of ascariasis worm on black background.
    Colored small intestine in female body silhouette, computer illustration. — Stock Photo
    Colored small intestine in female body silhouette, computer illustration.
    Human pathogenic viruses causing respiratory and enteric infections, digital illustration. — Stock Photo
    Human pathogenic viruses causing respiratory and enteric infections, digital illustration.
    Human intestinal villi, computer illustration. — Stock Photo
    Human intestinal villi, computer illustration.
    E. coli bacteria, illustration. Escherichia coli is a rod-shaped bacterium (bacillus). Its cell membrane is covered in fine filaments called pili or fimbriae — Stock Photo
    E. coli bacteria, illustration. Escherichia coli is a rod-shaped bacterium (bacillus). Its cell membrane is covered in fine filaments called pili or fimbriae
    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.
    Mid section illustration of small intestine in male body silhouette. — Stock Photo
    Mid section illustration of small intestine in male body silhouette.
    Healthy state of large intestines — Stock Photo
    Healthy state of large intestines
    Colored small intestine in female body silhouette, computer illustration. — Stock Photo
    Colored small intestine in female body silhouette, computer illustration.
    Male body with diseased colon, computer illustration. — Stock Photo
    Male body with diseased colon, computer illustration.
    3d rendered illustration of colored female small intestine in body silhouette. — Stock Photo
    3d rendered illustration of colored female small intestine in body silhouette.
    Colored small intestine in female body silhouette, computer illustration. — Stock Photo
    Colored small intestine in female body silhouette, computer illustration.
    Illustration of human silhouette with painful digestive system. — Stock Photo
    Illustration of human silhouette with painful digestive system.
    Escherichia coli pathogenic bacteria — Stock Photo
    Escherichia coli pathogenic bacteria
    Male silhouette with visible small intestine, digital illustration. — Stock Photo
    Male silhouette with visible small intestine, digital illustration.
    Illustration of colon in male body silhouette on white background. — Stock Photo
    Illustration of colon in male body silhouette on white background.
    Group of cysts of Giardia intestinalis protozoans flagellated parasites in small intestine, digital illustration. — Stock Photo
    Group of cysts of Giardia intestinalis protozoans flagellated parasites in small intestine, digital illustration.
    Illustration of small intestine in transparent male silhouette. — Stock Photo
    Illustration of small intestine in transparent male silhouette.
    Illustration of small intestine in human body silhouette. — Stock Photo
    Illustration of small intestine in human body silhouette.
    Realistic body model showing female anatomy on black background, computer illustration. — Stock Photo
    Realistic body model showing female anatomy on black background, computer illustration.
    Human body model showing female anatomy with internal organs, digital 3d render illustration. — Stock Photo
    Human body model showing female anatomy with internal organs, digital 3d render illustration.
    3d illustration of tapeworms infestation in human intestine. — Stock Photo
    3d illustration of tapeworms infestation in human intestine.
    Eggs of parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Eggs of parasitic worm Trichuris trichiura, computer illustration
    Female silhouette with visible large intestine, digital illustration. — Stock Photo
    Female silhouette with visible large intestine, digital illustration.
    Illustration of silhouette of obese man with visible intestine. — Stock Photo
    Illustration of silhouette of obese man with visible intestine.
    Female body with diseased colon, digital illustration. — Stock Photo
    Female body with diseased colon, digital illustration.
    Male anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Male anatomy with orange colored large intestine, digital illustration.
    Group of cysts of Giardia intestinalis protozoans flagellated parasites in small intestine, digital illustration. — Stock Photo
    Group of cysts of Giardia intestinalis protozoans flagellated parasites in small intestine, digital illustration.