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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.
    Illustration of painful knee joint in human skeleton part. — Stock Photo
    Illustration of painful knee joint in human skeleton part.
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Back view of woman walking between green plants and bushes inside of old greenhouse with high ceiling and arched window, Scotland — Stock Photo
    Back view of woman walking between green plants and bushes inside of old greenhouse with high ceiling and arched window, Scotland
    Full body young Asian female in traditional saffron dress standing in corridor of old abandoned stone house in Jeddah city in Saudi Arabia — Stock Photo
    Full body young Asian female in traditional saffron dress standing in corridor of old abandoned stone house in Jeddah city in Saudi Arabia
    Diseased gallbladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased gallbladder in abstract human body, conceptual digital illustration.
    Illustration of fat inside of human artery. — Stock Photo
    Illustration of fat inside of human artery.
    Close-up view of dried figs on wooden table — Stock Photo
    Close-up view of dried figs on wooden table
    Illustration of aortic aneurysm in human heart. — Stock Photo
    Illustration of aortic aneurysm in human heart.
    Toilet seat microbes, conceptual digital illustration. — Stock Photo
    Toilet seat microbes, conceptual digital illustration.
    Cancer invasion into surrounding tissues, conceptual computer illustration. — Stock Photo
    Cancer invasion into surrounding tissues, conceptual computer illustration.
    Cryptosporidium parvum parasites in oocyst form causing of cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasites in oocyst form causing of cryptosporidiosis, digital illustration.
    Lobar pneumonia in stage of grey hepatisation, conceptual digital illustration. — Stock Photo
    Lobar pneumonia in stage of grey hepatisation, conceptual digital illustration.
    Cryptosporidium parvum parasites in oocyst form causing of cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasites in oocyst form causing of cryptosporidiosis, digital 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.
    Digital illustration showing malignant growth in pancreas while pancreatic cancer. — Stock Photo
    Digital illustration showing malignant growth in pancreas while pancreatic cancer.
    3d illustration of cancer cells connecting to tissue. — Stock Photo
    3d illustration of cancer cells connecting to tissue.
    Digital illustration of human body with kidneys cancer. — Stock Photo
    Digital illustration of human body with kidneys cancer.
    Brain cancer, conceptual computer illustration — Stock Photo
    Brain cancer, conceptual computer illustration
    Illustration of transparent blue silhouette of male body with colored pancreas cancer. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored pancreas cancer.
    Digital illustration of trypanosome protozoan parasites in blood causing sleeping sickness transmitted by blood. — Stock Photo
    Digital illustration of trypanosome protozoan parasites in blood causing sleeping sickness transmitted by blood.
    Polar research vessel, in the Antarctic. — Stock Photo
    Polar research vessel, in the Antarctic.
    3d illustration of Salmonella sp. bacteria showing internal structure — Stock Photo
    3d illustration of Salmonella sp. bacteria showing internal structure
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in blood vessel, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in blood vessel, digital illustration.
    Top view of fish with lime slices on ice — Stock Photo
    Top view of fish with lime slices on ice
    3d illustration of red blood cells erythrocytes. — Stock Photo
    3d illustration of red blood cells erythrocytes.
    Human metapneumovirus particles. Computer illustration of particles of the human metapneumovirus (hMPV), a respiratory virus that affects almost all children by the age of 5 — Stock Photo
    Human metapneumovirus particles. Computer illustration of particles of the human metapneumovirus (hMPV), a respiratory virus that affects almost all children by the age of 5
    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
    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
    Diseased bladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased bladder in abstract human body, conceptual digital illustration.
    Illustration of female silhouette with highlighted thyroid gland cancer. — Stock Photo
    Illustration of female silhouette with highlighted thyroid gland cancer.
    Dementia, conceptual computer illustration — Stock Photo
    Dementia, conceptual computer illustration
    The Ring Road in Iceland goes off into the distance through the snowy North Iceland landscape; Iceland — Stock Photo
    The Ring Road in Iceland goes off into the distance through the snowy North Iceland landscape; Iceland
    Computer illustration of Haemophilus influenzae, coccobacillus bacteria — Stock Photo
    Computer illustration of Haemophilus influenzae, coccobacillus bacteria
    Colored digital illustration of pink cancer cells. — Stock Photo
    Colored digital illustration of pink cancer cells.
    Cancerous tumour visualisation — Stock Photo
    Cancerous tumour visualisation
    Woman on top of 4x4 parked in the Moremi Reserve, Botswana. — Stock Photo
    Woman on top of 4x4 parked in the Moremi Reserve, Botswana.
    Diseased lungs in transparent male body on white background, computer illustration. — Stock Photo
    Diseased lungs in transparent male body on white background, computer illustration.
    Influenza myxovirus particle containing RNA, 3d digital illustration. — Stock Photo
    Influenza myxovirus particle containing RNA, 3d digital illustration.
    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.
    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.
    Illustration of silhouette of obese man with visible adrenal glands. — Stock Photo
    Illustration of silhouette of obese man with visible adrenal glands.
    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.
    Female anatomy with highlighted diseased liver, computer illustration. — Stock Photo
    Female anatomy with highlighted diseased liver, computer illustration.
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer.
    Lyme disease bacteria, digital illustration. — Stock Photo
    Lyme disease bacteria, digital illustration.
    Abstract transparent male body with glowing thyroid cancer, digital illustration. — Stock Photo
    Abstract transparent male body with glowing thyroid cancer, digital illustration.
    Man with backache due to sitting, computer illustration — Stock Photo
    Man with backache due to sitting, computer illustration
    Diseased bladder in transparent female body model, conceptual illustration. — Stock Photo
    Diseased bladder in transparent female body model, conceptual 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.
    Cancer cell, scientific digital illustration. — Stock Photo
    Cancer cell, scientific digital illustration.
    Woman picking green beans — Stock Photo
    Woman picking green beans
    Plasmodium vivax protozoan inside red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoan inside red blood cells, digital illustration.
    Uterine cancer in female body, conceptual computer illustration. — Stock Photo
    Uterine cancer in female body, conceptual computer illustration.
    Illustration of silhouette of obese man with visible adrenal glands. — Stock Photo
    Illustration of silhouette of obese man with visible adrenal glands.
    Breast cancer. Illustration of malignant (cancerous) tumour (red) in woman breast — Stock Photo
    Breast cancer. Illustration of malignant (cancerous) tumour (red) in woman breast
    Illustration of human silhouette with painful thyroid gland. — Stock Photo
    Illustration of human silhouette with painful thyroid gland.
    People looking at a small colony of Penguins — Stock Photo
    People looking at a small colony of Penguins
    Illustration of cancerous tumour in female brain. — Stock Photo
    Illustration of cancerous tumour in female brain.
    3d rendered illustration of blue silhouette of man with chest pain. — Stock Photo
    3d rendered illustration of blue silhouette of man with chest pain.