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    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Computer illustration of unicellular yeast fungus Candida auris. — Stock Photo
    Computer illustration of unicellular yeast fungus Candida auris.
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans — Stock Photo
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum. — Stock Photo
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum.
    Marine planktonic unicellular alga — Stock Photo
    Marine planktonic unicellular alga
    Digital illustration of Escherichia coli bacteria. — Stock Photo
    Digital illustration of Escherichia coli bacteria.
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Balamuthia mandrillaris amoeba organism, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organism, digital illustration.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    3d digital illustration of unicellular yeast fungus Candida auris. — Stock Photo
    3d digital illustration of unicellular yeast fungus Candida auris.
    Cell with pseudopodia — Stock Photo
    Cell with pseudopodia
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae. — Stock Photo
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae.
    3d digital illustration of unicellular yeast fungus Candida auris. — Stock Photo
    3d digital illustration of unicellular yeast fungus Candida auris.
    Human embryo and close-up of Toxoplasma gondii parasites, conceptual illustration. — Stock Photo
    Human embryo and close-up of Toxoplasma gondii parasites, conceptual illustration.
    Digital artwork of unicellular yeast fungus Candida auris. — Stock Photo
    Digital artwork of unicellular yeast fungus Candida auris.
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Inner structure of a typical bacterial cell, illustration. Bacterial cells do not have a membrane-bound nucleus or organelles — Stock Photo
    Inner structure of a typical bacterial cell, illustration. Bacterial cells do not have a membrane-bound nucleus or organelles
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Digital illustration of human digestive system and close-up of Escherichia coli bacteria. — Stock Photo
    Digital illustration of human digestive system and close-up of Escherichia coli bacteria.
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Balamuthia mandrillaris amoeba organisms, digital illustration. — Stock Photo
    Balamuthia mandrillaris amoeba organisms, digital illustration.
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Planktonic unicellular alga Diploneis sp. — Stock Photo
    Planktonic unicellular alga Diploneis sp.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Cryptococcus gattii fungus, computer illustration. — Stock Photo
    Cryptococcus gattii fungus, computer illustration.
    Spore-forming Microsporidia parasite, computer illustration. — Stock Photo
    Spore-forming Microsporidia parasite, computer illustration.
    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast.
    Arachnoidiscus sp. diatom algae — Stock Photo
    Arachnoidiscus sp. diatom algae
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats — Stock Photo
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats
    Closterium desmid, computer illustration. — Stock Photo
    Closterium desmid, computer illustration.
    Computer illustration of unicellular yeast fungus Candida auris. — Stock Photo
    Computer illustration of unicellular yeast fungus Candida auris.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species — Stock Photo
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species
    Toxoplasma gondii in blood, digital illustration. — Stock Photo
    Toxoplasma gondii in blood, digital illustration.
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae. — Stock Photo
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Spore-forming Microsporidia parasite, computer illustration. — Stock Photo
    Spore-forming Microsporidia parasite, computer illustration.
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream. — Stock Photo
    Malaria-infected mosquito piercing skin and transmitting malaria parasites into bloodstream.
    Actinocyclus sp. diatom unicellular algae — Stock Photo
    Actinocyclus sp. diatom unicellular algae
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    3d illustration of red colored protozoan microorganism. — Stock Photo
    3d illustration of red colored protozoan microorganism.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    3d digital illustration of unicellular yeast fungus Candida auris. — Stock Photo
    3d digital illustration of unicellular yeast fungus Candida auris.
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes — Stock Photo
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.
    Conceptual illustration of organic cell structure. — Stock Photo
    Conceptual illustration of organic cell structure.
    Sporozoite malaria pathogens, digital illustration. — Stock Photo
    Sporozoite malaria pathogens, digital illustration.
    Diatom eukaryotic algae — Stock Photo
    Diatom eukaryotic algae
    Computer illustration of unicellular fungus (yeast) Candida auris — Stock Photo
    Computer illustration of unicellular fungus (yeast) Candida auris
    Liradiscus sp. planktonic unicellular algae — Stock Photo
    Liradiscus sp. planktonic unicellular algae
    Computer illustration of unicellular fungus (yeast) Candida auris — Stock Photo
    Computer illustration of unicellular fungus (yeast) Candida auris
    Balamuthia mandrillaris amoeba, computer illustration. — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration.
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration. — Stock Photo
    Transplacental transmission of Toxoplasma gondii parasites to human embryo, conceptual illustration.