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    Digital illustration of chains of Streptobacillus moniliformis rat bite fever bacteria. — Stock Photo
    Digital illustration of chains of Streptobacillus moniliformis rat bite fever bacteria.
    Plasmodium vivax protozoan inside red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoan inside red blood cells, digital illustration.
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    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.
    Digital illustration of HIV retrovirus of lentivirus kind, causing of collapse of immune system and AIDS. — Stock Photo
    Digital illustration of HIV retrovirus of lentivirus kind, causing of collapse of immune system and AIDS.
    Bacterial colonies on agar plate. — Stock Photo
    Bacterial colonies on agar plate.
    Zika virus particles transmitted by mosquito bite, digital illustration. — Stock Photo
    Zika virus particles transmitted by mosquito bite, digital illustration.
    Nipah virus in lungs, conceptual computer illustration. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore in people who had close contact with pigs — Stock Photo
    Nipah virus in lungs, conceptual computer illustration. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore in people who had close contact with pigs
    Antibiotic resistant Pseudomonas aeruginosa bacterium, digital 3d illustration. — Stock Photo
    Antibiotic resistant Pseudomonas aeruginosa bacterium, digital 3d illustration.
    Illustration of bacteria causing bacterial pneumonia in alveoli. — Stock Photo
    Illustration of bacteria causing bacterial pneumonia in alveoli.
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Acrospaera radiolarian shell — Stock Photo
    Acrospaera radiolarian shell
    Bacteria multiplying on surface, digital illustration. — Stock Photo
    Bacteria multiplying on surface, digital illustration.
    Green Adenovirus particles, colored digital 3d illustration. — Stock Photo
    Green Adenovirus particles, colored digital 3d illustration.
    3d illustration of red rod-shaped bacteria. — Stock Photo
    3d illustration of red rod-shaped bacteria.
    Microbiologist working in laboratory with bacteria growth in petri dish. — Stock Photo
    Microbiologist working in laboratory with bacteria growth in petri dish.
    Immune system T-lymphocytes cells binding antigen, digital illustration. — Stock Photo
    Immune system T-lymphocytes cells binding antigen, digital illustration.
    Chicken eggs in carton and close-up of Listeria monocytogenes bacteria. — Stock Photo
    Chicken eggs in carton and close-up of Listeria monocytogenes bacteria.
    Rod-shaped bacterial strands — Stock Photo
    Rod-shaped bacterial strands
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Closeup of Bacteria, computer illustration — Stock Photo
    Closeup of Bacteria, computer illustration
    Zika virus blue particles, digital illustration. — Stock Photo
    Zika virus blue particles, digital illustration.
    Mature virus and budding release of HIV — Stock Photo
    Mature virus and budding release of HIV
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors. — Stock Photo
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors.
    Examining bacterial sample under microscope. — Stock Photo
    Examining bacterial sample under microscope.
    Plasmodium vivax protozoan, computer illustration. — Stock Photo
    Plasmodium vivax protozoan, computer illustration.
    Human cytomegalovirus particles in blood flow, digital illustration. — Stock Photo
    Human cytomegalovirus particles in blood flow, digital illustration.
    Visual render of Mono virus — Stock Photo
    Visual render of Mono virus
    Plasmodium ovale protozoan, computer illustration. — Stock Photo
    Plasmodium ovale protozoan, computer illustration.
    Female researchers using micropipette in laboratory. — Stock Photo
    Female researchers using micropipette in laboratory.
    Digital artwork of white blood cells attacking illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking illuminated cancer cell.
    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
    Digital illustration of shaped virus cells. — Stock Photo
    Digital illustration of shaped virus cells.
    Faecalibacterium prausnitzii bacteria, digital illustration. — Stock Photo
    Faecalibacterium prausnitzii bacteria, digital illustration.
    Balamuthia mandrillaris amoeba, computer illustration. — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration.
    Close-up of hands of scientist taking sample from culture in Petri dish. — Stock Photo
    Close-up of hands of scientist taking sample from culture in Petri dish.
    Safety of drinking water. Conceptual illustration showing hepatitis A virus in drop of water. — Stock Photo
    Safety of drinking water. Conceptual illustration showing hepatitis A virus in drop of water.
    Gonorrhoea infection causing by bacteria Neisseria gonorrhoeae in male organ while urethritis, digital illustration. — Stock Photo
    Gonorrhoea infection causing by bacteria Neisseria gonorrhoeae in male organ while urethritis, digital illustration.
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease. — Stock Photo
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease.
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore — Stock Photo
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore
    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)
    Lassa virus particles, digital illustration. — Stock Photo
    Lassa virus particles, digital illustration.
    Digital illustration showing inclusion composed of chlamydia reticulate bodies near nucleus of cell. — Stock Photo
    Digital illustration showing inclusion composed of chlamydia reticulate bodies near nucleus of cell.
    Illustration of the fungus Candida. Individual cells of the fungus are shown as purple ellipsoids. Species of Candida can cause serious infection in humans. For example, Candida auris causes candidiasis, often acquired in hospital by patients — Stock Photo
    Illustration of the fungus Candida. Individual cells of the fungus are shown as purple ellipsoids. Species of Candida can cause serious infection in humans. For example, Candida auris causes candidiasis, often acquired in hospital by patients
    Nipah virus particle, digital artwork. — Stock Photo
    Nipah virus particle, digital artwork.
    Rod-shaped bacteria infecting organism — Stock Photo
    Rod-shaped bacteria infecting organism
    Digital illustration of virus particles on plain background. — Stock Photo
    Digital illustration of virus particles on plain background.
    Scientist hand placing sample on slide under microscope. — Stock Photo
    Scientist hand placing sample on slide under microscope.
    Abstract illustration of Moraxella catarrhalis cocci bacteria. — Stock Photo
    Abstract illustration of Moraxella catarrhalis cocci bacteria.
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3) — Stock Photo
    Computer illustration of a varicella zoster virus particles, the cause of chickenpox and shingles. Varicella zoster virus is also known as human herpes virus type 3 (HHV-3)
    Spherical and rod-shaped bacteria inside biofilm, digital illustration. — Stock Photo
    Spherical and rod-shaped bacteria inside biofilm, digital illustration.
    Plasmodium malariae protozoan inside red blood cells in the ring-form trophozoite stage, computer illustration — Stock Photo
    Plasmodium malariae protozoan inside red blood cells in the ring-form trophozoite stage, computer illustration
    Illustration of virus particles — Stock Photo
    Illustration of virus particles
    Acanthamoeba castellanii amoeba in cerebrospinal fluid, digital illustration. — Stock Photo
    Acanthamoeba castellanii amoeba in cerebrospinal fluid, digital illustration.
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Glass phial with blood sample. — Stock Photo
    Glass phial with blood sample.
    Illustration of different shapes of bacteria: spherical, rod-like and spiral. — Stock Photo
    Illustration of different shapes of bacteria: spherical, rod-like and spiral.
    Digital illustration of green virus particles on plain background. — Stock Photo
    Digital illustration of green virus particles on plain background.
    Neisseria gonorrhoeae bacteria, digital illustration. — Stock Photo
    Neisseria gonorrhoeae bacteria, digital illustration.