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    Coloured scanning electron micrograph (SEM) of uric acid crystals. — Stock Photo
    Coloured scanning electron micrograph (SEM) of uric acid crystals.
    Viral lung infection, illustration. Inflamed lungs infected with virus particles. — Stock Photo
    Viral lung infection, illustration. Inflamed lungs infected with virus particles.
    Illustration of human silhouette with inflamed larynx. — Stock Photo
    Illustration of human silhouette with inflamed larynx.
    Breast tissue showing adenocarcinoma — Stock Photo
    Breast tissue showing adenocarcinoma
    Person wearing bear mask — Stock Photo
    Person wearing bear mask
    Listeria monocytogenes bacterium, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis. Listeriosis is contracted through contaminated food — Stock Photo
    Listeria monocytogenes bacterium, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis. Listeriosis is contracted through contaminated food
    Porphyromonas gingivalis oral bacterium, computer illustration. P. gingivalis (formerly known as Bacteroides gingivalis) is part of the normal flora of the mouth, intestine and urogenital tract — Stock Photo
    Porphyromonas gingivalis oral bacterium, computer illustration. P. gingivalis (formerly known as Bacteroides gingivalis) is part of the normal flora of the mouth, intestine and urogenital tract
    Illustration of cancerous tumour in female brain. — Stock Photo
    Illustration of cancerous tumour in female brain.
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    3d rendered illustration of blue silhouette of man with headache on white background. — Stock Photo
    3d rendered illustration of blue silhouette of man with headache on white background.
    Abandoned Farm Building Atop Snowy Hill — Stock Photo
    Abandoned Farm Building Atop Snowy Hill
    Close-up view of various tasty healthy raisins in bowl — Stock Photo
    Close-up view of various tasty healthy raisins in bowl
    Disabled man ringing the door bell of his home — Stock Photo
    Disabled man ringing the door bell of his home
    Illustration of human spleen in body silhouette. — Stock Photo
    Illustration of human spleen in body silhouette.
    Tables and chairs arranged in empty modern coffee shop — Stock Photo
    Tables and chairs arranged in empty modern coffee shop
    Transparent male body with bladder cancer, computer illustration. — Stock Photo
    Transparent male body with bladder cancer, computer illustration.
    Exterior of plant with walls covered with plasterboard during renovation and prepared for plastering — Stock Photo
    Exterior of plant with walls covered with plasterboard during renovation and prepared for plastering
    Top view of delicious traditional chinese dumplings in bowl on table — Stock Photo
    Top view of delicious traditional chinese dumplings in bowl on table
    Illustration of blue silhouette of obese woman with highlighted adrenal glands. — Stock Photo
    Illustration of blue silhouette of obese woman with highlighted adrenal glands.
    Illustration of silhouette of obese man with visible adrenal glands. — Stock Photo
    Illustration of silhouette of obese man with visible adrenal glands.
    Coloured X-ray of arthritic knees — Stock Photo
    Coloured X-ray of arthritic knees
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration. — Stock Photo
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration.
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Group of people in a rubber boat in the Antarctic. — Stock Photo
    Group of people in a rubber boat in the Antarctic.
    Brain cancer, conceptual computer illustration — Stock Photo
    Brain cancer, conceptual computer illustration
    Illustration of female silhouette with highlighted mammary glands cancer. — Stock Photo
    Illustration of female silhouette with highlighted mammary glands cancer.
    Stop sign and car riding on road covered with blowing snow near Morris, Manitoba, Canada — Stock Photo
    Stop sign and car riding on road covered with blowing snow near Morris, Manitoba, Canada
    Cancer cell, computer illustration. — Stock Photo
    Cancer cell, computer illustration.
    Illustration of human silhouette with inflamed heart. — Stock Photo
    Illustration of human silhouette with inflamed heart.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Chlamydia trachomatis bacterium, computer illustration. Chlamydia trachomatis causes a sexually transmitted infection that can go undetected causing infertility. It also causes the eye disease trachoma, which can lead to blindness. — Stock Photo
    Chlamydia trachomatis bacterium, computer illustration. Chlamydia trachomatis causes a sexually transmitted infection that can go undetected causing infertility. It also causes the eye disease trachoma, which can lead to blindness.
    Coloured X-ray of arthritic knees — Stock Photo
    Coloured X-ray of arthritic knees
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells. — Stock Photo
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells.
    Cytotoxic T-cells capturing cancer cells, digital illustration. — Stock Photo
    Cytotoxic T-cells capturing cancer cells, digital illustration.
    Kidney stone crystals, coloured scanning electron micrograph (SEM). — Stock Photo
    Kidney stone crystals, coloured scanning electron micrograph (SEM).
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration.
    Illustration of human prostate in body silhouette. — Stock Photo
    Illustration of human prostate in body silhouette.
    Coloured X-ray of the foot of a 22-year-old male patient with a spur (osteophyte, highlighted) affecting the tibia (shin bone). — Stock Photo
    Coloured X-ray of the foot of a 22-year-old male patient with a spur (osteophyte, highlighted) affecting the tibia (shin bone).
    Sickle cell anemia — Stock Photo
    Sickle cell anemia
    Lung cancer in female realistic body 3d model, conceptual computer illustration. — Stock Photo
    Lung cancer in female realistic body 3d model, conceptual computer illustration.
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration. — Stock Photo
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration.
    3d illustration of a schistosome fluke (Schistosoma mansoni) — Stock Photo
    3d illustration of a schistosome fluke (Schistosoma mansoni)
    Stomach cancer in female body, conceptual computer illustration. — Stock Photo
    Stomach cancer in female body, conceptual computer illustration.
    3d illustration of cross-section of ebola pathogen. — Stock Photo
    3d illustration of cross-section of ebola pathogen.
    3d illustration of antibiotics destroying bacteria. — Stock Photo
    3d illustration of antibiotics destroying bacteria.
    Illustration of lipid blood clot in circulatory system. — Stock Photo
    Illustration of lipid blood clot in circulatory system.
    Heart pacemaker, X-ray — Stock Photo
    Heart pacemaker, X-ray
    Colored computed tomography scan of brain section of senior female patient with glioblastoma brain cancer. — Stock Photo
    Colored computed tomography scan of brain section of senior female patient with glioblastoma brain cancer.
    Water drops on lush, — Stock Photo
    Water drops on lush,
    Fractured arm, coloured X-ray. — Stock Photo
    Fractured arm, coloured X-ray.
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration.
    Neutrophil cells aggregating at site of infection — Stock Photo
    Neutrophil cells aggregating at site of infection
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Illustration of female silhouette with painful larynx. — Stock Photo
    Illustration of female silhouette with painful larynx.
    Illustration of female silhouette with painful bladder. — Stock Photo
    Illustration of female silhouette with painful bladder.
    Controlled forest burn — Stock Photo
    Controlled forest burn
    Digital illustration of human hair with dandruff. — Stock Photo
    Digital illustration of human hair with dandruff.