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    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock Photo
    Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses
    Digital illustration showing close-up of cholera infection bacteria in small intestine. — Stock Photo
    Digital illustration showing close-up of cholera infection bacteria in small intestine.
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer. — Stock Photo
    Fibrous-cavernous pulmonary tuberculosis cavity in right lung with well-formed fibrous layer.
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus. — Stock Photo
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus.
    Composite image of scientist hand with colony of Micrococcus luteus bacteria in nutrient medium — Stock Photo
    Composite image of scientist hand with colony of Micrococcus luteus bacteria in nutrient medium
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria.
    Digital illustration of abnormal blood cells infected by hairy cell leukemia. — Stock Photo
    Digital illustration of abnormal blood cells infected by hairy cell leukemia.
    Middle-aged man in the medical mask is quarantined in the hospital and pressed her forehead against the window — Stock Photo
    Middle-aged man in the medical mask is quarantined in the hospital and pressed her forehead against the window
    Toilet microbes on contaminated seat surface in water closet, conceptual digital illustration. — Stock Photo
    Toilet microbes on contaminated seat surface in water closet, conceptual digital illustration.
    Measles virus particle, illustration. This virus, from the Morbillivirus group of viruses, consists of an RNA (ribonucleic acid) core surrounded by an envelope studded with surface proteins haemagglutinin-neuraminidase and fusion protein — Stock Photo
    Measles virus particle, illustration. This virus, from the Morbillivirus group of viruses, consists of an RNA (ribonucleic acid) core surrounded by an envelope studded with surface proteins haemagglutinin-neuraminidase and fusion protein
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Herpes simplex virus, computer illustration — Stock Photo
    Herpes simplex virus, computer illustration
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Red surveillance camera on blue background monitoring people on the street. Camera to search for quarantine offenders caused by Coronavirus — Stock Photo
    Red surveillance camera on blue background monitoring people on the street. Camera to search for quarantine offenders caused by Coronavirus
    Syphilis bacteria shape and structure — Stock Photo
    Syphilis bacteria shape and structure
    Toilet microbes on contaminated seat surface, conceptual digital illustration. — Stock Photo
    Toilet microbes on contaminated seat surface, conceptual digital 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
    Virus particles in blood stream, digital illustration. — Stock Photo
    Virus particles in blood stream, digital illustration.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Illustration of female silhouette with highlighted colon infection. — Stock Photo
    Illustration of female silhouette with highlighted colon infection.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Conceptual illustration of viral encephalitis is an inflammation of the brain caused by a virus. — Stock Photo
    Conceptual illustration of viral encephalitis is an inflammation of the brain caused by a virus.
    Stomach infected with parasitic nematode worms — Stock Photo
    Stomach infected with parasitic nematode worms
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Illustration of lungs with close-up with infection in male body silhouette on black background. — Stock Photo
    Illustration of lungs with close-up with infection in male body silhouette on black background.
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria.
    Miliary tuberculosis in human lungs, digital illustration. — Stock Photo
    Miliary tuberculosis in human lungs, digital illustration.
    Bacterial blood infection, digital illustration. — Stock Photo
    Bacterial blood infection, digital illustration.
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Virus particles in blood stream, digital illustration. — Stock Photo
    Virus particles in blood stream, 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 Staphylococcus aureus bacteria in alveoli of lungs causing pneumonia. — Stock Photo
    Digital illustration of Staphylococcus aureus bacteria in alveoli of lungs causing pneumonia.
    Human silhouette with lungs infected by pneumonia caused by flu, illustration. — Stock Photo
    Human silhouette with lungs infected by pneumonia caused by flu, illustration.
    Illustration of female silhouette with highlighted intestine infection. — Stock Photo
    Illustration of female silhouette with highlighted intestine infection.
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria. — Stock Photo
    Human digestive system with Shigellosis infection and close-up of Shigella bacteria.
    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
    Entomopathogenic fungus infected fly at tip of leaf. — Stock Photo
    Entomopathogenic fungus infected fly at tip of leaf.
    Cell infected with virus particles causing a programmed cell death, 3d illustration — Stock Photo
    Cell infected with virus particles causing a programmed cell death, 3d illustration
    Human protected and isolated from the outside in a glass box. — Stock Photo
    Human protected and isolated from the outside in a glass box.
    Digital artwork of human cell with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cell with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Acute pyelonephritis caused by Acinetobacter baumannii bacteria — Stock Photo
    Acute pyelonephritis caused by Acinetobacter baumannii bacteria
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis — Stock Photo
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis
    Naegleria fowleri amoeba in cerebrospinal fluid, digital illustration. — Stock Photo
    Naegleria fowleri amoeba in cerebrospinal fluid, digital illustration.
    Illustration of antibodies (purple) responding to an infection with the SARS-CoV-2 coronavirus (center) — Stock Photo
    Illustration of antibodies (purple) responding to an infection with the SARS-CoV-2 coronavirus (center)
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection. — Stock Photo
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection.
    Acute pyelonephritis, computer illustration and light micrograph — Stock Photo
    Acute pyelonephritis, computer illustration and light micrograph
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection. — Stock Photo
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection.
    Candida albicans infected medical catheter — Stock Photo
    Candida albicans infected medical catheter
    Digital illustration showing cerebrospinal fluid containing numerous neutrophils with Neisseria meningitidis bacteria of Meningococcal meningitis. — Stock Photo
    Digital illustration showing cerebrospinal fluid containing numerous neutrophils with Neisseria meningitidis bacteria of Meningococcal meningitis.
    Herpes simplex virus, computer illustration — Stock Photo
    Herpes simplex virus, computer illustration
    Brain-eating amoeba Naegleria fowleri protozoans in trophozoite form, digital illustration. — Stock Photo
    Brain-eating amoeba Naegleria fowleri protozoans in trophozoite form, digital illustration.
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis — Stock Photo
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis
    Herpes simplex virus, computer illustration — Stock Photo
    Herpes simplex virus, computer illustration
    Bacterial blood infection — Stock Photo
    Bacterial blood infection
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis — Stock Photo
    Acute pyelonephritis. Illustration of small abscesses (yellow) on surface of kidney in case of acute pyelonephritis
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis — Stock Photo
    Brain infections. Computer illustration of microorganisms that cause encephalitis and meningitis