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    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    Lymphocytes attacking a cancer cell — Stock Photo
    Lymphocytes attacking a cancer cell
    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.
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Female scientist examining cultures in petri dish. — Stock Photo
    Female scientist examining cultures in petri dish.
    AIDS virus and antibodies — Stock Photo
    AIDS virus and antibodies
    Group of Trichomonas hominis protozoan parasites, digital illustration. — Stock Photo
    Group of Trichomonas hominis protozoan parasites, digital illustration.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Genetics research toolkit — Stock Photo
    Genetics research toolkit
    Dust mite on skin surface — Stock Photo
    Dust mite on skin surface
    Giardia lamblia protozoan parasites, digital illustration — Stock Photo
    Giardia lamblia protozoan parasites, digital illustration
    Human teeth being cleaned — Stock Photo
    Human teeth being cleaned
    Close-up of technician storing stem cell samples in cryostorage. — Stock Photo
    Close-up of technician storing stem cell samples in cryostorage.
    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.
    Viral particle infection blood stream — Stock Photo
    Viral particle infection blood stream
    Orbital plate of human skull — Stock Photo
    Orbital plate of human skull
    Immunodeficiency virus infection in blood stream — Stock Photo
    Immunodeficiency virus infection in blood stream
    Illustration of human skeleton painful wrist. — Stock Photo
    Illustration of human skeleton painful wrist.
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Trichomonas vaginalis parasitic microorganism causing trichomoniasis, digital illustration. — Stock Photo
    Trichomonas vaginalis parasitic microorganism causing trichomoniasis, digital illustration.
    Technician holding cell samples in bioengineering laboratory. — Stock Photo
    Technician holding cell samples in bioengineering laboratory.
    Red blood cells in bloodstream — Stock Photo
    Red blood cells in bloodstream
    Meningitis bacteria (Neisseria meningitidis), computer illustration — Stock Photo
    Meningitis bacteria (Neisseria meningitidis), computer illustration
    Human cell membrane, digital illustration. — Stock Photo
    Human cell membrane, digital illustration.
    Silhouette of discus thrower with visible heart, anatomical illustration. — Stock Photo
    Silhouette of discus thrower with visible heart, anatomical illustration.
    Listeria monocytogenes bacteria, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis — Stock Photo
    Listeria monocytogenes bacteria, computer illustration. L. monocytogenes is the causative agent of the human disease listeriosis
    Artery partially blocked by an atheroma — Stock Photo
    Artery partially blocked by an atheroma
    Sitting male silhouette with knee pain, digital illustration. — Stock Photo
    Sitting male silhouette with knee pain, digital illustration.
    Pancreas in human body and close-up view of insulin molecule, digital illustration. — Stock Photo
    Pancreas in human body and close-up view of insulin molecule, digital illustration.
    Male technician with face shield closing cryostorage. — Stock Photo
    Male technician with face shield closing cryostorage.
    Focus of inflammation localized in hip joint — Stock Photo
    Focus of inflammation localized in hip joint
    Scientist examining specimen under microscope during clinical trial in laboratory. — Stock Photo
    Scientist examining specimen under microscope during clinical trial in laboratory.
    Antibody 1IGT molecules — Stock Photo
    Antibody 1IGT molecules
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses. They recognise incoming viruses and present their antigens to T cells. — Stock Photo
    Interaction between virus and dendritic cell, computer illustration. Dendritic cells play a crucial role in initiating immune responses against viruses. They recognise incoming viruses and present their antigens to T cells.
    Organelles of an eukaryotic cell — Stock Photo
    Organelles of an eukaryotic cell
    Close-up of lab technician in protective suit and face mask in sterile laboratory. — Stock Photo
    Close-up of lab technician in protective suit and face mask in sterile laboratory.
    Localisation of back pain in spinal section — Stock Photo
    Localisation of back pain in spinal section
    Nervous system and brain — Stock Photo
    Nervous system and brain
    Common house dust mite — Stock Photo
    Common house dust mite
    Female silhouette with elbow pain, digital illustration. — Stock Photo
    Female silhouette with elbow pain, digital illustration.
    Male silhouette with wrist pain, digital illustration. — Stock Photo
    Male silhouette with wrist pain, digital illustration.
    Human digestive system with highlighted pancreas and molecular model of insulin. — Stock Photo
    Human digestive system with highlighted pancreas and molecular model of insulin.
    Normal human brain — Stock Photo
    Normal human brain
    Broken jaw bone — Stock Photo
    Broken jaw bone
    Structural anatomy of spine vertebrae — Stock Photo
    Structural anatomy of spine vertebrae
    Ulcerative colitis, computer illustration. — Stock Photo
    Ulcerative colitis, computer illustration.
    Human brain structure — Stock Photo
    Human brain structure
    Leg and foot bones — Stock Photo
    Leg and foot bones
    Researcher designing chemical formula with molecular model. — Stock Photo
    Researcher designing chemical formula with molecular model.
    Shoulder blood supply — Stock Photo
    Shoulder blood supply
    Pain localized in foot — Stock Photo
    Pain localized in foot
    Human lungs with ribcage — Stock Photo
    Human lungs with ribcage
    Female silhouette with wrist pain, digital illustration. — Stock Photo
    Female silhouette with wrist pain, digital illustration.
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration. — Stock Photo
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration.
    Human skin anatomy and blood supply — Stock Photo
    Human skin anatomy and blood supply
    Human skin anatomy and blood supply — Stock Photo
    Human skin anatomy and blood supply
    Hepatitis B virus particles in 360-degree panorama view, colored digital illustration. — Stock Photo
    Hepatitis B virus particles in 360-degree panorama view, colored digital illustration.