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    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Covid-19 coronavirus particle, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019 — Stock Photo
    Covid-19 coronavirus particle, computer illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019
    Bacteria multiplying on surface, digital illustration. — Stock Photo
    Bacteria multiplying on surface, digital illustration.
    Test tubes and Petri dishes in pathogenic laboratory. — Stock Photo
    Test tubes and Petri dishes in pathogenic laboratory.
    Scanning electron micrograph of bacteria cultured from sample of human faeces. — Stock Photo
    Scanning electron micrograph of bacteria cultured from sample of human faeces.
    Illustration of spores of the yeast-like fungus Histoplasma capsulatum. When inhaled these spores can cause a respiratory disease called histoplasmosis — Stock Photo
    Illustration of spores of the yeast-like fungus Histoplasma capsulatum. When inhaled these spores can cause a respiratory disease called histoplasmosis
    Magnified digital illustration of basophil cell. — Stock Photo
    Magnified digital illustration of basophil cell.
    Illustration of several of the antibiotic resistance mechanisms of bacteria — Stock Photo
    Illustration of several of the antibiotic resistance mechanisms of bacteria
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia — Stock Photo
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia
    Digital illustration of silhouette with liver inflammation and close-up of hepatitis B virus. — Stock Photo
    Digital illustration of silhouette with liver inflammation and close-up of hepatitis B virus.
    Female scientists with pipette tray talking in laboratory — Stock Photo
    Female scientists with pipette tray talking in laboratory
    Coronavirus particles, computer illustration — Stock Photo
    Coronavirus particles, computer illustration
    Bacteriophage t4 virus and red blood cell — Stock Photo
    Bacteriophage t4 virus and red blood cell
    Close-up of pipetting samples into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting samples into microcentrifuge tubes.
    Zika virus blue particles, digital illustration. — Stock Photo
    Zika virus blue particles, digital illustration.
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Purple colored Campylobacter bacteria, computer illustration. — Stock Photo
    Purple colored Campylobacter bacteria, computer illustration.
    Illustration of pink stem cell on black background. — Stock Photo
    Illustration of pink stem cell on black background.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Plasmodium vivax protozoa inside blood vessel, digital illustration. — Stock Photo
    Plasmodium vivax protozoa inside blood vessel, digital illustration.
    Clostridium perfringens bacterium, illustration. These are Gram-positive, endospore-forming, rod-shaped bacteria. This bacterium frequently occurs in the intestines of humans and many domestic and feral animals — Stock Photo
    Clostridium perfringens bacterium, illustration. These are Gram-positive, endospore-forming, rod-shaped bacteria. This bacterium frequently occurs in the intestines of humans and many domestic and feral animals
    Spreading germs, conceptual illustration — Stock Photo
    Spreading germs, conceptual illustration
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia — Stock Photo
    Hendra virus, computer illustration. Hendra virus infects both humans and horses and is passed on by fruit bats. It is rare and found mainly in Australia
    Human embryonic stem cell on pin tip, conceptual digital artwork. — Stock Photo
    Human embryonic stem cell on pin tip, conceptual digital artwork.
    Close-up of petri dishes with pipette. — Stock Photo
    Close-up of petri dishes with pipette.
    Rod-shaped bacteria infecting organism — Stock Photo
    Rod-shaped bacteria infecting organism
    Green colored probiotic rod-shaped gram-positive aerobic Bacillus clausii bacteria restoring microflora of intestine. — Stock Photo
    Green colored probiotic rod-shaped gram-positive aerobic Bacillus clausii bacteria restoring microflora of intestine.
    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.
    Magnified digital illustration of mammary gland cells. — Stock Photo
    Magnified digital illustration of mammary gland cells.
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Flu viruses, computer illustration — Stock Photo
    Flu viruses, computer illustration
    Colored norovirus particles, digital illustration. — Stock Photo
    Colored norovirus particles, digital illustration.
    Pneumocystis jirovecii fungus spores causing pneumonia digital illustration. — Stock Photo
    Pneumocystis jirovecii fungus spores causing pneumonia digital illustration.
    Microbiological cultures growing in Petri dishes. — Stock Photo
    Microbiological cultures growing in Petri dishes.
    Mycoplasma genitalium parasitic bacteria, digital illustration. — Stock Photo
    Mycoplasma genitalium parasitic bacteria, digital illustration.
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration. These Gram-positive spherical bacteria are usually found in pairs. They colonize respiratory tract asymptomatically in healthy carriers, but can cause pneumonia — Stock Photo
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration. These Gram-positive spherical bacteria are usually found in pairs. They colonize respiratory tract asymptomatically in healthy carriers, but can cause pneumonia
    Clostridium bacteria, computer illustration. Clostridia are spore-forming bacteria that include several human pathogenic species, C. difficile, C. tetani, C. botulinum, C. perfringens, and others. C. difficile is a normal inhabitant of the human inte — Stock Photo
    Clostridium bacteria, computer illustration. Clostridia are spore-forming bacteria that include several human pathogenic species, C. difficile, C. tetani, C. botulinum, C. perfringens, and others. C. difficile is a normal inhabitant of the human inte
    Coronavirus particles, computer illustration — Stock Photo
    Coronavirus particles, computer illustration
    Fat in blood cells blocking blood vessel, digital illustration. — Stock Photo
    Fat in blood cells blocking blood vessel, digital illustration.
    Human cytomegalovirus particles in blood flow, digital illustration. — Stock Photo
    Human cytomegalovirus particles in blood flow, digital illustration.
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Coronavirus particles, computer illustration — Stock Photo
    Coronavirus particles, computer illustration
    Female scientist in hijab and face mask using digital tablet — Stock Photo
    Female scientist in hijab and face mask using digital tablet
    Bacteria amidst blood cells in blood vessel, digital illustration. — Stock Photo
    Bacteria amidst blood cells in blood vessel, digital illustration.
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells — Stock Photo
    Bacterial encephalitis. Conceptual computer illustration showing bacteria infecting brain cells
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    Illustration of malaria infected blood cells. — Stock Photo
    Illustration of malaria infected blood cells.
    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
    Destruction of human cytomegalovirus — Stock Photo
    Destruction of human cytomegalovirus
    Realistic illustration of human nerve cell on white background. — Stock Photo
    Realistic illustration of human nerve cell on white background.
    Top view of microbes growing on agar plate. — Stock Photo
    Top view of microbes growing on agar plate.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Female scientist researching sample in petri dish under light microscope. — Stock Photo
    Female scientist researching sample in petri dish under light microscope.
    3d illustration of Spirochaete Borrelia bacteria, the cause of Lyme disease — Stock Photo
    3d illustration of Spirochaete Borrelia bacteria, the cause of Lyme disease
    Gram-positive Peptococcus bacteria, digital illustration. — Stock Photo
    Gram-positive Peptococcus bacteria, digital illustration.
    Covid-19 coronavirus particles, illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019. The virus causes a mild respiratory illness (Covid-19) that can develop into pneumonia — Stock Photo
    Covid-19 coronavirus particles, illustration. The new coronavirus SARS-CoV-2 (previously 2019-CoV) emerged in Wuhan, China, in December 2019. The virus causes a mild respiratory illness (Covid-19) that can develop into pneumonia
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease. — Stock Photo
    Digital illustration of Legionella pneumophila bacteria, cause of Legionnaires disease.
    Scientist sampling bacteria colonies growing in Petri dish. — Stock Photo
    Scientist sampling bacteria colonies growing in Petri dish.
    Female scientist examining cultures in petri dish. — Stock Photo
    Female scientist examining cultures in petri dish.
    Digital illustration of abstract coronavirus particle. — Stock Photo
    Digital illustration of abstract coronavirus particle.