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    Digital illustration of Escherichia coli bacteria. — Stock Photo
    Digital illustration of Escherichia coli bacteria.
    Conceptual illustration of association of Bacteroides massiliensis bacteria in intestine with prostate cancer development. — Stock Photo
    Conceptual illustration of association of Bacteroides massiliensis bacteria in intestine with prostate cancer development.
    Viral particles enclosed in protective capsid — Stock Photo
    Viral particles enclosed in protective capsid
    Piece of cake and microscopic image of Salmonella bacteria, conceptual illustration. — Stock Photo
    Piece of cake and microscopic image of Salmonella bacteria, conceptual illustration.
    Coxsackievirus enterovirus virus particles, digital illustration. — Stock Photo
    Coxsackievirus enterovirus virus particles, digital illustration.
    Helicobacter pylori bacteria — Stock Photo
    Helicobacter pylori bacteria
    Trichomonas vaginalis parasitic microorganisms causing trichomoniasis, digital illustration. — Stock Photo
    Trichomonas vaginalis parasitic microorganisms causing trichomoniasis, digital illustration.
    St. Louis encephalitis virus particles, computer illustration — Stock Photo
    St. Louis encephalitis virus particles, computer illustration
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    Simian virus 40 particle — Stock Photo
    Simian virus 40 particle
    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.
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis. — Stock Photo
    Illustration of female reproductive system and parasitic Trichomonas vaginalis causing trichomoniasis.
    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
    Visual render of Hepatitis E virus — Stock Photo
    Visual render of Hepatitis E virus
    Bacteria infecting organism — Stock Photo
    Bacteria infecting organism
    E. coli bacteria, illustration. Escherichia coli is a rod-shaped bacterium (bacillus). Its cell membrane is covered in fine filaments called pili or fimbriae — Stock Photo
    E. coli bacteria, illustration. Escherichia coli is a rod-shaped bacterium (bacillus). Its cell membrane is covered in fine filaments called pili or fimbriae
    Plasmodium vivax protozoa and red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoa and red blood cells, digital illustration.
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis — Stock Photo
    Tuberculosis bacteria. Computer illustration of Mycobacterium tuberculosis bacteria, the Gram-positive rod-shaped bacteria which cause the disease tuberculosis
    Mucor mould, also known as black fungus, computer illustration. Mucor sp. fungi are found in soil and decaying organic matter and are common indoor moulds — Stock Photo
    Mucor mould, also known as black fungus, computer illustration. Mucor sp. fungi are found in soil and decaying organic matter and are common indoor moulds
    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
    Protozoan Plasmodium falciparum cell, causative agent of tropical malaria, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum cell, causative agent of tropical malaria, digital illustration.
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells — Stock Photo
    Bacterial brain infection. Conceptual computer illustration showing Streptococcus pneumoniae bacteria, one of the main causes of bacterial meningitis and meningoencephalitis, infecting brain cells
    Plasmodium falciparum protozoan inside red blood cells, computer illustration — Stock Photo
    Plasmodium falciparum protozoan inside red blood cells, computer illustration
    Illustration of yellow abscesses on kidney and close-up of bacteria. — Stock Photo
    Illustration of yellow abscesses on kidney and close-up of bacteria.
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Ebola virus particle in blood stream, digital illustration. — Stock Photo
    Ebola virus particle in blood stream, digital illustration.
    Aspergilloma of lungs and close-up of Aspergillus fungus, digital illustration. — Stock Photo
    Aspergilloma of lungs and close-up of Aspergillus fungus, digital illustration.
    Chicken pox virus — Stock Photo
    Chicken pox virus
    3d illustration of red-colored virus particles with receptors. — Stock Photo
    3d illustration of red-colored virus particles with receptors.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Human intestine and close-up of Campylobacter jejuni bacteria causing Campylobacteriosis, conceptual illustration. — Stock Photo
    Human intestine and close-up of Campylobacter jejuni bacteria causing Campylobacteriosis, conceptual illustration.
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration.
    3d illustration of flu pathogen in cross-section. — Stock Photo
    3d illustration of flu pathogen in cross-section.
    Measles virus particle, computer illustration. — Stock Photo
    Measles virus particle, computer illustration.
    Stylized colorful rabies virus particles — Stock Photo
    Stylized colorful rabies virus particles
    Nipah virus particle, digital artwork. — Stock Photo
    Nipah virus particle, digital artwork.
    Anthrax bacteria, illustration. Anthrax bacteria (Bacillus anthracis) are the cause of the disease anthrax in humans and livestock. They are gram-positive spore producing bacteria arranged in chains (streptobacilli). Many cells have a central spore. — Stock Photo
    Anthrax bacteria, illustration. Anthrax bacteria (Bacillus anthracis) are the cause of the disease anthrax in humans and livestock. They are gram-positive spore producing bacteria arranged in chains (streptobacilli). Many cells have a central spore.
    Illustration of antibodies responding to an infection with the SARS-CoV-2 coronavirus (centre). The virus causes a mild respiratory illness (Covid-19) that can develop into pneumonia and be fatal in some cases — Stock Photo
    Illustration of antibodies responding to an infection with the SARS-CoV-2 coronavirus (centre). The virus causes a mild respiratory illness (Covid-19) that can develop into pneumonia and be fatal in some cases
    Conceptual image of plasmodium causing malaria — Stock Photo
    Conceptual image of plasmodium causing malaria
    West Nile virus particles, computer illustration. West Nile virus (WNV) is known to cause encephalitis in humans. — Stock Photo
    West Nile virus particles, computer illustration. West Nile virus (WNV) is known to cause encephalitis in humans.
    Conceptual illustration of piece of cake and magnification of bacteria of food-borne infection on white background. — Stock Photo
    Conceptual illustration of piece of cake and magnification of bacteria of food-borne infection on white background.
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Stachybotrys toxic mould fruiting structure with spores, digital illustration. — Stock Photo
    Stachybotrys toxic mould fruiting structure with spores, digital illustration.
    Antibiotic resistant Pseudomonas aeruginosa bacterium, digital 3d illustration. — Stock Photo
    Antibiotic resistant Pseudomonas aeruginosa bacterium, digital 3d illustration.
    Yellow fever virus — Stock Photo
    Yellow fever virus
    View of Poliovirus particle — Stock Photo
    View of Poliovirus particle
    Zika virus superimposed on map of Brazil, digital illustration. — Stock Photo
    Zika virus superimposed on map of Brazil, digital illustration.
    Balamuthia mandrillaris amoeba, computer illustration. — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration.
    Viral infection and viral particles — Stock Photo
    Viral infection and viral particles
    Abstract lassa virus particles, conceptual digital illustration. — Stock Photo
    Abstract lassa virus particles, conceptual digital illustration.
    Antibiotic resistant Pseudomonas aeruginosa rod-shaped bacteria, digital 3d illustration. — Stock Photo
    Antibiotic resistant Pseudomonas aeruginosa rod-shaped bacteria, digital 3d illustration.
    Parasitic amoeba engulfing red blood cells — Stock Photo
    Parasitic amoeba engulfing red blood cells
    Digital illustration of Salmonella Gram-negative rod-shaped bacteria with flagella. — Stock Photo
    Digital illustration of Salmonella Gram-negative rod-shaped bacteria with flagella.
    Coronavirus particles, 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 particles, 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 bacterial gonorrhoea infection in female body, digital illustration. — Stock Photo
    Close-up of bacterial gonorrhoea infection in female body, digital illustration.
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration. — Stock Photo
    Toxic mould spores of Stachybotrys chartarum fungus, digital illustration.
    Destruction of human cytomegalovirus — Stock Photo
    Destruction of human cytomegalovirus
    Norovirus infection in small intestine, digital illustration. — Stock Photo
    Norovirus infection in small intestine, digital illustration.