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    Micrograph of H3N2 influenza virus particles. — Stock Photo
    Micrograph of H3N2 influenza virus particles.
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis. — Stock Photo
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis.
    Acetic acid bacteria — Stock Photo
    Acetic acid bacteria
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    Growing bacterial colony — Stock Photo
    Growing bacterial colony
    Pentatrichomonas hominis protozoan in human large intestine, digital illustration. — Stock Photo
    Pentatrichomonas hominis protozoan in human large intestine, digital illustration.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Rhinovirus, illustration. Rhinoviruses infects the upper respiratory tract and are the cause of the common cold, ear infections, sore throats and other sinus infections — Stock Photo
    Rhinovirus, illustration. Rhinoviruses infects the upper respiratory tract and are the cause of the common cold, ear infections, sore throats and other sinus infections
    Bacterial infection of tissue lining — Stock Photo
    Bacterial infection of tissue lining
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis. — Stock Photo
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis.
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants — Stock Photo
    Whooping cough bacterium (Bordetella pertussis), illustration. These rod-shaped Gram-negative bacilli cause whooping cough, known as pertussis, mainly in infants
    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
    Pentatrichomonas hominis protozoan in human large intestine, digital illustration. — Stock Photo
    Pentatrichomonas hominis protozoan in human large intestine, digital illustration.
    Coronaviruses causing pneumonia, conceptual computer illustration — Stock Photo
    Coronaviruses causing pneumonia, conceptual computer illustration
    Coronavirus particle, computer illustration. Different strains of coronavirus are responsible for diseases such as the common cold, gastroenteritis and SARS (severe acute respiratory syndrome) — Stock Photo
    Coronavirus particle, computer illustration. Different strains of coronavirus are responsible for diseases such as the common cold, gastroenteritis and SARS (severe acute respiratory syndrome)
    Close-up of growing dermatophyte fungus, illustration. — Stock Photo
    Close-up of growing dermatophyte fungus, illustration.
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration. — Stock Photo
    Blood cells and Plasmodium sp. parasites (at schizont stage) causing malaria, computer illustration.
    Streptococcus bacteria structure — Stock Photo
    Streptococcus bacteria structure
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Cryptococcus gattii fungus, computer illustration. — Stock Photo
    Cryptococcus gattii fungus, computer illustration.
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Close-up of parasitic amoeba in human intestine, digital artwork. — Stock Photo
    Close-up of parasitic amoeba in human intestine, digital artwork.
    Illustration of malaria infected blood cells. — Stock Photo
    Illustration of malaria infected blood cells.
    Coronavirus particle, computer illustration — Stock Photo
    Coronavirus particle, computer illustration
    Mycobacterium chimaera bacteria, computer illustration. — Stock Photo
    Mycobacterium chimaera bacteria, computer illustration.
    Spore-forming Microsporidia parasite, computer illustration. — Stock Photo
    Spore-forming Microsporidia parasite, computer illustration.
    Synthetic biology with artificial cell, abstract digital conceptual illustration. — Stock Photo
    Synthetic biology with artificial cell, abstract digital conceptual illustration.
    Coronaviruses causing pneumonia, conceptual computer illustration — Stock Photo
    Coronaviruses causing pneumonia, conceptual computer illustration
    Blood clot, computer illustration — Stock Photo
    Blood clot, computer illustration
    Colored digital illustration of Blastomyces dermatitidis fungus causing fungal infection. — Stock Photo
    Colored digital illustration of Blastomyces dermatitidis fungus causing fungal infection.
    Covid-19 coronavirus particle, illustration. — Stock Photo
    Covid-19 coronavirus particle, illustration.
    Rod-shaped bacterial organisms — Stock Photo
    Rod-shaped bacterial organisms
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Activated platelets in blood flow, illustration. — Stock Photo
    Activated platelets in blood flow, illustration.
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Balamuthia mandrillaris amoeba, computer illustration. — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration.
    Digital artwork of abstract pathogenic microorganism in human large intestine. — Stock Photo
    Digital artwork of abstract pathogenic microorganism in human large intestine.
    Abstract fungus, scientific digital illustration. — Stock Photo
    Abstract fungus, scientific digital illustration.
    Blastomyces dermatitidis fungus, computer illustration. — Stock Photo
    Blastomyces dermatitidis fungus, computer illustration.
    Coronaviruses causing pneumonia, conceptual computer illustration — Stock Photo
    Coronaviruses causing pneumonia, conceptual computer 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
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2 (sphere) — Stock Photo
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2 (sphere)
    Bacterial infection of tissue lining — Stock Photo
    Bacterial infection of tissue lining
    Covid-19 coronavirus particles, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019 — Stock Photo
    Covid-19 coronavirus particles, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019
    Illustration of malaria infected blood cells. — Stock Photo
    Illustration of malaria infected blood cells.
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration — Stock Photo
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration
    Rod-shaped bacteria infecting organism — Stock Photo
    Rod-shaped bacteria infecting organism
    Enterovirus D68 species — Stock Photo
    Enterovirus D68 species
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Bacteria on a hand, conceptual illustration. — Stock Photo
    Bacteria on a hand, conceptual illustration.
    Computer illustration of unicellular fungus (yeast) Candida auris — Stock Photo
    Computer illustration of unicellular fungus (yeast) Candida auris
    3d illustration of a transparent and colourful protozoan. — Stock Photo
    3d illustration of a transparent and colourful protozoan.
    Bacteria found in a sample of human faeces — Stock Photo
    Bacteria found in a sample of human faeces
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis. — Stock Photo
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis.
    Flu virus particle structure — Stock Photo
    Flu virus particle structure
    Q fever bacteria inside a cell — Stock Photo
    Q fever bacteria inside a cell