Boil A boil is a painful, pus-filled bump under your skin â the result of a bacterial infection of one or more hair follicles. Carbuncle. Carbuncle A carbuncle is a cluster of boils â painful, pus-filled bumps â that form a connected area of infection under the skin.
Blood cultures are used to detect the presence of bacteria or fungi in the blood, to identify the type present, and to guide treatment. Testing is used to identify a blood infection (septicemia) that can lead to sepsis, a serious and life-threatening complication.
Pfeiffer bacillus-a species found in the respiratory tract that causes acute respiratory infection, acute conjunctivitis, bacterial meningitis, and purulent meningitis. Synonym(s): Haemophilus influenzae. Pfeiffer blood agar-solid agar, with a few drops of human blood smeared on the surface.