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    Illustration of red cancer cell on blue background. — Stock Photo
    Illustration of red cancer cell on blue background.
    Faecalibacterium prausnitzii bacteria, digital illustration. — Stock Photo
    Faecalibacterium prausnitzii bacteria, digital illustration.
    Zika virus particles transmitted by mosquito bite, digital illustration. — Stock Photo
    Zika virus particles transmitted by mosquito bite, digital illustration.
    Lactobacillus bacteria in human small intestine microbiome, digital illustration. — Stock Photo
    Lactobacillus bacteria in human small intestine microbiome, digital illustration.
    Human cytomegalovirus particles in blood flow, digital illustration. — Stock Photo
    Human cytomegalovirus particles in blood flow, digital illustration.
    Probiotic bacteria in normal intestinal microbiota, digital illustration. — Stock Photo
    Probiotic bacteria in normal intestinal microbiota, digital illustration.
    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
    Artwork of human fertilization — Stock Photo
    Artwork of human fertilization
    Bacteriophage t4 virus and red blood cell — Stock Photo
    Bacteriophage t4 virus and red blood cell
    Illustration of condiophores of fungus Aspergillus fumigatus — Stock Photo
    Illustration of condiophores of fungus Aspergillus fumigatus
    Growing dermatophyte fungus, 3d illustration. — Stock Photo
    Growing dermatophyte fungus, 3d illustration.
    Digital illustration of virus particles on plain background. — Stock Photo
    Digital illustration of virus particles on plain background.
    Computer illustration of staphylococci bacteria (Staphylococcus aureus) — Stock Photo
    Computer illustration of staphylococci bacteria (Staphylococcus aureus)
    Porphyromonas gingivalis oral bacterium, computer illustration. P. gingivalis (formerly known as Bacteroides gingivalis) is part of the normal flora of the mouth, intestine and urogenital tract — Stock Photo
    Porphyromonas gingivalis oral bacterium, computer illustration. P. gingivalis (formerly known as Bacteroides gingivalis) is part of the normal flora of the mouth, intestine and urogenital tract
    Fossilised fragment of a coccolithotrope skeleton — Stock Photo
    Fossilised fragment of a coccolithotrope skeleton
    Coronavirus particle, illustration. SARS-CoV-2 is an enveloped RNA (ribonucleic acid) virus. Within the membrane are spike proteins (centre, large red spikes), membrane proteins and envelope proteins. SARS-CoV-2 causes the respiratory infection Covid — Stock Photo
    Coronavirus particle, illustration. SARS-CoV-2 is an enveloped RNA (ribonucleic acid) virus. Within the membrane are spike proteins (centre, large red spikes), membrane proteins and envelope proteins. SARS-CoV-2 causes the respiratory infection Covid
    Micrograph of H3N2 influenza virus particles. — Stock Photo
    Micrograph of H3N2 influenza virus particles.
    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.
    Aerobic gram-positive Micrococcus luteus bacteria, digital illustration. — Stock Photo
    Aerobic gram-positive Micrococcus luteus bacteria, digital illustration.
    Fungus releasing spores, computer illustration — Stock Photo
    Fungus releasing spores, computer illustration
    Digital illustration of trypanosome parasites causing Chagas disease in blood vessel. — Stock Photo
    Digital illustration of trypanosome parasites causing Chagas disease in blood vessel.
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation — Stock Photo
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation
    Coronavirus particle, computer illustration — Stock Photo
    Coronavirus particle, computer illustration
    Animal cell with mitochondria, digital illustration. — Stock Photo
    Animal cell with mitochondria, digital illustration.
    Examining petri dish under microscope. — Stock Photo
    Examining petri dish under microscope.
    Flu virus cells in imaging flow cytometry colours, digital illustration. — Stock Photo
    Flu virus cells in imaging flow cytometry colours, digital illustration.
    Alternaria fungi on white background, digital illustration. — Stock Photo
    Alternaria fungi on white background, digital illustration.
    St. Louis encephalitis virus particles, computer illustration — Stock Photo
    St. Louis encephalitis virus particles, computer illustration
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis — Stock Photo
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis
    Kingella kingae bacteria, computer illustration. K. kingae is a Gram-negative coccobacillus that is part of the normal flora of children's throats. It can occasionally cause invasive disease, primarily osteomyelitis (bone infection) — Stock Photo
    Kingella kingae bacteria, computer illustration. K. kingae is a Gram-negative coccobacillus that is part of the normal flora of children's throats. It can occasionally cause invasive disease, primarily osteomyelitis (bone infection)
    Norovirus gastroenteritis virus particles, digital illustration. — Stock Photo
    Norovirus gastroenteritis virus particles, digital illustration.
    Arenavirus (or Lassa virus, LASV) particles budding from a cell, illustration. This virus mainly infects rodents, but can infect humans through exposure to infected rodent faeces or urine — Stock Photo
    Arenavirus (or Lassa virus, LASV) particles budding from a cell, illustration. This virus mainly infects rodents, but can infect humans through exposure to infected rodent faeces or urine
    Neisseria gonorrhoeae bacteria, digital illustration. — Stock Photo
    Neisseria gonorrhoeae bacteria, digital illustration.
    Scientists with digital tablet and specimen tray in laboratory — Stock Photo
    Scientists with digital tablet and specimen tray in laboratory
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease. — Stock Photo
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease.
    Protozoan Plasmodium falciparum, causative agent of tropical malaria, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria, digital illustration.
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis and close-up of Mycobacterium tuberculosis bacteria.
    Salmonella typhimurium bacteria — Stock Photo
    Salmonella typhimurium bacteria
    Virus particles or virions — Stock Photo
    Virus particles or virions
    Surface structure of Adenovirus — Stock Photo
    Surface structure of Adenovirus
    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
    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Illustration of an antibiotic-resistant bacteria (white) on the colon epithelium. The antibiotic-resistant bacteria will go on to transfer its antibiotic resistance genes horizontally to the bacteria surrounding it. — Stock Photo
    Illustration of an antibiotic-resistant bacteria (white) on the colon epithelium. The antibiotic-resistant bacteria will go on to transfer its antibiotic resistance genes horizontally to the bacteria surrounding it.
    Mother and son looking at each other with face masks for protection — Stock Photo
    Mother and son looking at each other with face masks for protection
    Streptococcus bacteria structure — Stock Photo
    Streptococcus bacteria structure
    Composite image of bacterial and fungal cultures in Petri dish in scientist hand in front of microbial illustration. — Stock Photo
    Composite image of bacterial and fungal cultures in Petri dish in scientist hand in front of microbial illustration.
    Norovirus infection in small intestine, digital illustration. — Stock Photo
    Norovirus infection in small intestine, digital illustration.
    Toilet seat microbes, conceptual digital illustration. — Stock Photo
    Toilet seat microbes, conceptual digital illustration.
    Magnified digital illustration of mammary gland cells. — Stock Photo
    Magnified digital illustration of mammary gland cells.
    Nipah virus particles, 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 particles, 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
    Colored digital illustration of purple cancer cell. — Stock Photo
    Colored digital illustration of purple cancer cell.
    Close-up of scientist hand holding Petri dish in pathology laboratory. — Stock Photo
    Close-up of scientist hand holding Petri dish in pathology laboratory.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Group of flagella cholera bacteria, digital illustration. — Stock Photo
    Group of flagella cholera bacteria, digital illustration.
    Rotavirus particles infecting human intestine, digital artwork. — Stock Photo
    Rotavirus particles infecting human intestine, digital artwork.
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    3d illustration of flu pathogen in cross-section. — Stock Photo
    3d illustration of flu pathogen in cross-section.
    Toxoplasma gondii in blood, digital illustration. — Stock Photo
    Toxoplasma gondii in blood, digital illustration.
    Scientists in protective workwear examining liquid in laboratory — Stock Photo
    Scientists in protective workwear examining liquid in laboratory
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration