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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
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Illustration of yellow abscesses on kidney and close-up of Enterococcus bacteria. — Stock Photo
    Illustration of yellow abscesses on kidney and close-up of Enterococcus bacteria.
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia. — Stock Photo
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia.
    Gram-positive Peptostreptococcus bacteria, digital illustration. — Stock Photo
    Gram-positive Peptostreptococcus bacteria, digital illustration.
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia. — Stock Photo
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia.
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface.
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Bacterial lung infection, illustration. — Stock Photo
    Bacterial lung infection, illustration.
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration — Stock Photo
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration
    Pneumonia caused by Streptococcus pneumoniae bacteria, conceptual illustration. — Stock Photo
    Pneumonia caused by Streptococcus pneumoniae bacteria, conceptual illustration.
    Gram-negative Veillonella bacteria, digital illustration. — Stock Photo
    Gram-negative Veillonella bacteria, digital illustration.
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration — Stock Photo
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration
    Gram-positive Peptostreptococcus bacteria, digital illustration. — Stock Photo
    Gram-positive Peptostreptococcus bacteria, digital illustration.
    Gram-negative Veillonella bacteria, digital illustration. — Stock Photo
    Gram-negative Veillonella bacteria, 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
    Dental plaque scanning electron micrograph — Stock Photo
    Dental plaque scanning electron micrograph
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface.
    Streptococcus bacteria structure — Stock Photo
    Streptococcus bacteria structure
    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
    Enterococcus coccoid bacteria, colored scanning electron micrograph. — Stock Photo
    Enterococcus coccoid bacteria, colored scanning electron micrograph.
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia. — Stock Photo
    Digital artwork of Streptococcus pneumoniae bacteria inside alveoli of lung causing pneumonia.
    Various microbes of different shapes — Stock Photo
    Various microbes of different shapes
    Streptococcus pyogenes bacteria. 3D computer illustration of Streptococcus pyogenes, or group-A Streptococcus, bacteria. S. pyogenes is a gram-positive spherical (coccus) bacteria — Stock Photo
    Streptococcus pyogenes bacteria. 3D computer illustration of Streptococcus pyogenes, or group-A Streptococcus, bacteria. S. pyogenes is a gram-positive spherical (coccus) bacteria
    Digital 3d illustration of the bacteria Streptococcus pneumoniae showing pairs of bacteria, called diplococci. — Stock Photo
    Digital 3d illustration of the bacteria Streptococcus pneumoniae showing pairs of bacteria, called diplococci.