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    Back pain. Conceptual computer illustration of a human skeleton holding a hand to the lower back. Lower back pain, called lumbago, is very common, and is caused by damage to the muscles and tendons surrounding the spine — Stock Photo
    Back pain. Conceptual computer illustration of a human skeleton holding a hand to the lower back. Lower back pain, called lumbago, is very common, and is caused by damage to the muscles and tendons surrounding the spine
    Computer illustration of unicellular fungus (yeast) Candida auris — Stock Photo
    Computer illustration of unicellular fungus (yeast) Candida auris
    Baculovirus structure, illustration. Baculoviruses are rod-shaped, enveloped (yellow lipid bilayer) viruses, with a large double-stranded DNA (deoxyribonucleic acid, red) genome packed inside nucleocapsids (protein coats, green) — Stock Photo
    Baculovirus structure, illustration. Baculoviruses are rod-shaped, enveloped (yellow lipid bilayer) viruses, with a large double-stranded DNA (deoxyribonucleic acid, red) genome packed inside nucleocapsids (protein coats, green)
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Artwork of cancerous cell — Stock Photo
    Artwork of cancerous cell
    Ampoules containing a vaccine against the coronavirus that causes the lung disease Covid-19, 3d conceptual illustration — Stock Photo
    Ampoules containing a vaccine against the coronavirus that causes the lung disease Covid-19, 3d conceptual illustration
    Closeup of Amoeba, computer illustration — Stock Photo
    Closeup of Amoeba, computer illustration
    Rotavirus particles infecting human intestine, digital artwork. — Stock Photo
    Rotavirus particles infecting human intestine, digital artwork.
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration. — Stock Photo
    Gram-negative plague bacteria Yersinia pestis with bipolar staining, digital illustration.
    Hypodermic needle and blood, computer illustration — Stock Photo
    Hypodermic needle and blood, computer illustration
    Atomic structure and atomic connectivity — Stock Photo
    Atomic structure and atomic connectivity
    West Nile virus particles — Stock Photo
    West Nile virus particles
    Escherichia coli bacterium, digital illustration. — Stock Photo
    Escherichia coli bacterium, digital illustration.
    Neisseria gonorrhoeae bacteria, digital illustration. — Stock Photo
    Neisseria gonorrhoeae bacteria, digital illustration.
    Abstract computer illustration of RNA polymerase transcribing DNA to messenger RNA mRNA. — Stock Photo
    Abstract computer illustration of RNA polymerase transcribing DNA to messenger RNA mRNA.
    Tiger lily pollen — Stock Photo
    Tiger lily pollen
    Balamuthia mandrillaris amoeba, computer illustration. — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration.
    Cancer cell with filaments — Stock Photo
    Cancer cell with filaments
    Pyramidal neurons of human brain cortex, computer illustration — Stock Photo
    Pyramidal neurons of human brain cortex, computer illustration
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration — Stock Photo
    Pyramidal neurons (nerve cells) of human brain frontal cortex, computer illustration
    Herpes simplex virus, computer illustration — Stock Photo
    Herpes simplex virus, computer illustration
    Network with connected lines, digital abstract illustration. — Stock Photo
    Network with connected lines, digital abstract illustration.
    Tumour tissue cells, digital illustration. — Stock Photo
    Tumour tissue cells, digital illustration.
    Neisseria gonorrhoeae bacteria, digital illustration. — Stock Photo
    Neisseria gonorrhoeae bacteria, digital illustration.
    Anatomy of a human heart, front and side view, 3d illustration. — Stock Photo
    Anatomy of a human heart, front and side view, 3d illustration.
    Human papilloma virus (HPV), computer illustration. HPV causes warts, which mostly occur on hands and feet. Certain strains also infect genitals. Although most warts are non-malignant (not cancerous), some strains of HPV have been associated — Stock Photo
    Human papilloma virus (HPV), computer illustration. HPV causes warts, which mostly occur on hands and feet. Certain strains also infect genitals. Although most warts are non-malignant (not cancerous), some strains of HPV have been associated
    Human papillomavirus, illustration. Human papilloma virus (HPV) causes warts, which mostly occur on the hands and feet. Certain strains also infect the genitals — Stock Photo
    Human papillomavirus, illustration. Human papilloma virus (HPV) causes warts, which mostly occur on the hands and feet. Certain strains also infect the genitals
    Ribonucleic acid (RNA) chain, 3d illustration. — Stock Photo
    Ribonucleic acid (RNA) chain, 3d illustration.
    Cancer invasion into surrounding tissues, conceptual computer illustration. — Stock Photo
    Cancer invasion into surrounding tissues, conceptual computer illustration.
    Cancer cell and T cells — Stock Photo
    Cancer cell and T cells
    Sindbis virus (SINV), computer illustration — Stock Photo
    Sindbis virus (SINV), computer illustration
    Columnar epithelium structure — Stock Photo
    Columnar epithelium structure
    Zika virus particles transmitted by mosquito bite, digital illustration. — Stock Photo
    Zika virus particles transmitted by mosquito bite, digital illustration.
    Colored norovirus particles, digital illustration. — Stock Photo
    Colored norovirus particles, digital illustration.
    Capsid of the hepatitis B virus — Stock Photo
    Capsid of the hepatitis B virus
    Man with foot pain and highlighted skeleton, computer illustration. — Stock Photo
    Man with foot pain and highlighted skeleton, computer illustration.
    Human embryonic stem cell, digital illustration. — Stock Photo
    Human embryonic stem cell, digital illustration.
    Reovirus viral particle — Stock Photo
    Reovirus viral particle
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, digital illustration.
    Simple columnar epithelium, digital illustration. — Stock Photo
    Simple columnar epithelium, digital illustration.
    Transparent cells on grey background, digital illustration. — Stock Photo
    Transparent cells on grey background, digital illustration.
    Human digestive system microbiota, 3d illustration. — Stock Photo
    Human digestive system microbiota, 3d illustration.
    Digital illustration showing cerebrospinal fluid containing numerous neutrophils with Neisseria meningitidis bacteria of Meningococcal meningitis. — Stock Photo
    Digital illustration showing cerebrospinal fluid containing numerous neutrophils with Neisseria meningitidis bacteria of Meningococcal meningitis.
    Stratified cuboidal epithelium, digital illustration. — Stock Photo
    Stratified cuboidal epithelium, digital illustration.
    Flu viruses, computer illustration — Stock Photo
    Flu viruses, computer illustration
    Cancer cell, computer illustration — Stock Photo
    Cancer cell, computer illustration
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons — Stock Photo
    Human brain with highlighted pons and neurons, illustration. Human brain with highlighted pons Varolii and close-up view of pyramidal neurons (nerve cells) located in pons
    Flu viruses, computer illustration — Stock Photo
    Flu viruses, computer illustration
    Quetzalcoatlus skeleton against white background, digital illustration. — Stock Photo
    Quetzalcoatlus skeleton against white background, digital illustration.
    Illustration of condiophores of fungus Aspergillus fumigatus — Stock Photo
    Illustration of condiophores of fungus Aspergillus fumigatus
    Conceptual illustration of viral encephalitis is an inflammation of the brain caused by a virus. — Stock Photo
    Conceptual illustration of viral encephalitis is an inflammation of the brain caused by a virus.
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Colored digital illustration of Blastomyces dermatitidis fungus causing fungal infection. — Stock Photo
    Colored digital illustration of Blastomyces dermatitidis fungus causing fungal infection.
    Digital illustration of cutaway view of human cell membrane. — Stock Photo
    Digital illustration of cutaway view of human cell membrane.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Human brain and spinal cord, computer illustration — Stock Photo
    Human brain and spinal cord, computer illustration
    Transparent cells on white background, digital illustration. — Stock Photo
    Transparent cells on white background, digital illustration.
    Virus particles in blood stream, digital illustration. — Stock Photo
    Virus particles in blood stream, digital illustration.
    Asteroid stone against purple space background, illustration. — Stock Photo
    Asteroid stone against purple space background, illustration.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells