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    Illustration of red and inflamed human appendix and close-up of bacteria causative agents of appendicitis. — Stock Photo
    Illustration of red and inflamed human appendix and close-up of bacteria causative agents of appendicitis.
    Squamous carcinoma of the skin — Stock Photo
    Squamous carcinoma of the skin
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital 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.
    Cryptosporidium parvum parasites in oocyst form causing of cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasites in oocyst form causing of cryptosporidiosis, 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.
    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.
    Cancer cell spreading, digital illustration. — Stock Photo
    Cancer cell spreading, digital illustration.
    Digital illustration of blastocystis hominis parasites, causative agents of diarrheal infection. — Stock Photo
    Digital illustration of blastocystis hominis parasites, causative agents of diarrheal infection.
    Mature man sneezing into handkerchief. — Stock Photo
    Mature man sneezing into handkerchief.
    Illustration of cancerous tumour in female small intestine. — Stock Photo
    Illustration of cancerous tumour in female small intestine.
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Illustration of human silhouette with inflamed uterus. — Stock Photo
    Illustration of human silhouette with inflamed uterus.
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver — Stock Photo
    Liver cirrhosis. Computer illustration and light micrograph of a section through a human liver with from primary biliary cirrhosis. Cirrhosis is a disease in which bands of fibrosis (internal scarring) break up the internal structure of the liver
    Asthmatic boy using inhaler, close-up. — Stock Photo
    Asthmatic boy using inhaler, close-up.
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Antibodies attacking cancer cell, computer illustration — Stock Photo
    Antibodies attacking cancer cell, computer illustration
    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.
    Illustration of female silhouette with highlighted liver cancer. — Stock Photo
    Illustration of female silhouette with highlighted liver cancer.
    Plasmodium vivax protozoa and red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoa and red blood cells, digital illustration.
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Illustration of testicle cancer in human body silhouette. — Stock Photo
    Illustration of testicle cancer in human body silhouette.
    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.
    Colored computed tomography scan of section through brain of senior male patient with dementia. — Stock Photo
    Colored computed tomography scan of section through brain of senior male patient with dementia.
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical) — Stock Photo
    Computer illustration of co-infection with two major respiratory pathogenic bacteria, Mycobacterium tuberculosis (rod-shaped) and Streptococcus pneumonia (spherical)
    3d rendered illustration of little tick on skin surface. — Stock Photo
    3d rendered illustration of little tick on skin surface.
    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.
    Epidermoid carcinoma skin cancer — Stock Photo
    Epidermoid carcinoma skin cancer
    Colored thyroid cancer cells, digital illustration. — Stock Photo
    Colored thyroid cancer cells, digital illustration.
    Abstract male body with appendix cancer, computer illustration. — Stock Photo
    Abstract male body with appendix cancer, computer illustration.
    3d illustration showing increase of non-functional white blood cells in leukaemia. — Stock Photo
    3d illustration showing increase of non-functional white blood cells in leukaemia.
    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.
    Oesophageal cancer, composite digital illustration with human body and cancer cell. — Stock Photo
    Oesophageal cancer, composite digital illustration with human body and cancer cell.
    Esophageal cancer in male body, abstract digital illustration. — Stock Photo
    Esophageal cancer in male body, abstract digital illustration.
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration. — Stock Photo
    Cryptosporidium parvum parasite in human body causing cryptosporidiosis, digital illustration.
    Mycobacterium tuberculosis bacteria — Stock Photo
    Mycobacterium tuberculosis bacteria
    Abstract transparent male body with glowing thyroid cancer, digital illustration. — Stock Photo
    Abstract transparent male body with glowing thyroid cancer, digital illustration.
    Protozoan Plasmodium falciparum cell, causative agent of tropical malaria, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum cell, causative agent of tropical malaria, 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.
    Osteoarthritis of the hip — Stock Photo
    Osteoarthritis of the hip
    Dividing prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Dividing prostate cancer cells, coloured scanning electron micrograph.
    Stomach cancer cell, computer illustration — Stock Photo
    Stomach cancer cell, computer illustration
    3d rendered illustration of grey silhouette of man with painful calf. — Stock Photo
    3d rendered illustration of grey silhouette of man with painful calf.
    Stomach cancer in human body, digital illustration. — Stock Photo
    Stomach cancer in human body, digital illustration.
    Emergency team pushing hospital gurney with patient in corridor. — Stock Photo
    Emergency team pushing hospital gurney with patient in corridor.
    Antibodies attacking cancer cell, computer illustration — Stock Photo
    Antibodies attacking cancer cell, computer illustration
    Conceptual digital illustration of medical nanorobot attacking cancerous cell. — Stock Photo
    Conceptual digital illustration of medical nanorobot attacking cancerous cell.
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Man in defensive pose, computer illustration — Stock Photo
    Man in defensive pose, computer illustration
    Illustration of blue illuminated cancer cell. — Stock Photo
    Illustration of blue illuminated cancer cell.
    3d illustration of lymphocytes attacking cancer cells in human body. — Stock Photo
    3d illustration of lymphocytes attacking cancer cells in human body.
    Cancer cell characteristic — Stock Photo
    Cancer cell characteristic
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Digital illustration of pink antibodies attacking blue virus particle. — Stock Photo
    Digital illustration of pink antibodies attacking blue virus particle.
    Diseased bladder in abstract human body, conceptual digital illustration. — Stock Photo
    Diseased bladder in abstract human body, conceptual digital illustration.
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus — Stock Photo
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus
    Tau protein in Alzheimers disease, medical illustration. — Stock Photo
    Tau protein in Alzheimers disease, medical illustration.
    Disabled young man holding wheelchair while boarding in his car — Stock Photo
    Disabled young man holding wheelchair while boarding in his car
    Diseased gallbladder, computer illustration — Stock Photo
    Diseased gallbladder, computer illustration