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    Close-up of scientist pipetting sample into eppendorf tube during experiment in laboratory. — Stock Photo
    Close-up of scientist pipetting sample into eppendorf tube during experiment in laboratory.
    Blood samples in PCR tubes. — Stock Photo
    Blood samples in PCR tubes.
    Female laboratory assistant wearing safety goggles. — Stock Photo
    Female laboratory assistant wearing safety goggles.
    Yellow colored nerve cell on dark background, digital illustration. — Stock Photo
    Yellow colored nerve cell on dark background, digital illustration.
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration — Stock Photo
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration
    Virus particles or virions — Stock Photo
    Virus particles or virions
    Coloured scanning electron micrograph of tardigrade water bear. — Stock Photo
    Coloured scanning electron micrograph of tardigrade water bear.
    Plasmodium malariae protozoan parasite, digital illustration. — Stock Photo
    Plasmodium malariae protozoan parasite, digital illustration.
    Bacterial colonies in petri dish on white background. — Stock Photo
    Bacterial colonies in petri dish on white background.
    Hands of microbiologist working in laboratory with biotechnology samples. — Stock Photo
    Hands of microbiologist working in laboratory with biotechnology samples.
    Micrograph of H3N2 influenza virus particles. — Stock Photo
    Micrograph of H3N2 influenza virus particles.
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration — Stock Photo
    SARS-CoV-2 viruses and activated neutrophil, conceptual computer illustration
    Illustration of healthy and degenerated substantia nigra of human brains with dopaminergic neurons. — Stock Photo
    Illustration of healthy and degenerated substantia nigra of human brains with dopaminergic neurons.
    Coronavirus particle, computer illustration — Stock Photo
    Coronavirus particle, computer illustration
    Scanning electron microscopy of DNA molecules and red and white blood cells. — Stock Photo
    Scanning electron microscopy of DNA molecules and red and white blood cells.
    Scale insects. Coloured scanning electron micrograph (SEM) of scale insects (superfamily Coccoidea) on a leaf. This pest feeds on the plant's sap. It secretes a powdery wax coating that protects it against pesticides and predators — Stock Photo
    Scale insects. Coloured scanning electron micrograph (SEM) of scale insects (superfamily Coccoidea) on a leaf. This pest feeds on the plant's sap. It secretes a powdery wax coating that protects it against pesticides and predators
    Microscopic view of Rickettsia bacterias on black background — Stock Photo
    Microscopic view of Rickettsia bacterias on black background
    Digital illustration of green bacteria cells on white background. — Stock Photo
    Digital illustration of green bacteria cells on white background.
    Microscopic view of human respiratory syncytial RSV virus — Stock Photo
    Microscopic view of human respiratory syncytial RSV virus
    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
    Illustration of adrenal gland and molecular model of steroid hormone Aldosterone. — Stock Photo
    Illustration of adrenal gland and molecular model of steroid hormone Aldosterone.
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2 (sphere) — Stock Photo
    Illustration of antibodies (y-shaped) responding to an infection with the new coronavirus SARS-CoV-2 (sphere)
    Abstract female silhouette with visible brain and spinal cord of nervous system, computer illustration. — Stock Photo
    Abstract female silhouette with visible brain and spinal cord of nervous system, computer illustration.
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    Crop anonymous chemist pouring marijuana oil from pipette into sample tube during examination in laboratory — Stock Photo
    Crop anonymous chemist pouring marijuana oil from pipette into sample tube during examination in laboratory
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda). — Stock Photo
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda).
    Male upper body anatomy and blood vessels, computer illustration. — Stock Photo
    Male upper body anatomy and blood vessels, computer illustration.
    Flu viruses, computer illustration — Stock Photo
    Flu viruses, computer illustration
    Visual render of Swine flu — Stock Photo
    Visual render of Swine flu
    Low angle view of scientist holding glass flask in laboratory. — Stock Photo
    Low angle view of scientist holding glass flask in laboratory.
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Red blood cells and protein particles, digital illustration. — Stock Photo
    Red blood cells and protein particles, digital illustration.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Close-up of centrifuge with sample in tube in hands of scientists. — Stock Photo
    Close-up of centrifuge with sample in tube in hands of scientists.
    Lassa virus particles, digital illustration. — Stock Photo
    Lassa virus particles, digital illustration.
    Microbiologist working with petri dish and test tubes in laboratory. — Stock Photo
    Microbiologist working with petri dish and test tubes in laboratory.
    3d illustration of red blood cells erythrocytes, white blood cells leukocytes and platelets thrombocytes. — Stock Photo
    3d illustration of red blood cells erythrocytes, white blood cells leukocytes and platelets thrombocytes.
    Macrophage (purple) and cancer cells (red), illustration. — Stock Photo
    Macrophage (purple) and cancer cells (red), illustration.
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake — Stock Photo
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake
    Stacked agar plates with microbiological cultures on plain background. — Stock Photo
    Stacked agar plates with microbiological cultures on plain background.
    3d rendered illustration of purple nerve cell. — Stock Photo
    3d rendered illustration of purple nerve cell.
    Bacterial colonies on agar plate. — Stock Photo
    Bacterial colonies on agar plate.
    Green bacteria, abstract digital illustration. — Stock Photo
    Green bacteria, abstract digital illustration.
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    3d rendered illustration of male cyclist heart while biking on black background. — Stock Photo
    3d rendered illustration of male cyclist heart while biking on black background.
    Female laboratory assistant standing with arms folded. — Stock Photo
    Female laboratory assistant standing with arms folded.
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Coxsackie B3 virus particle — Stock Photo
    Coxsackie B3 virus particle
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Common house dust mite — Stock Photo
    Common house dust mite
    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.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Model virus particles kit, illustration. — Stock Photo
    Model virus particles kit, illustration.
    Human papilloma virus (HPV), computer illustration — Stock Photo
    Human papilloma virus (HPV), computer illustration
    Chimeric antigen receptor in brain cell membrane, illustration. — Stock Photo
    Chimeric antigen receptor in brain cell membrane, illustration.
    Normal cardiovascular system — Stock Photo
    Normal cardiovascular system
    Rift Valley fever virus particles, computer illustration. — Stock Photo
    Rift Valley fever virus particles, computer illustration.
    Plasmodium vivax protozoa and red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoa and red blood cells, digital illustration.