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Serotypes are groups within a single species of microorganisms, such as bacteria or viruses, which share distinctive surface structures. For example, all Salmonella bacteria look alike under a microscope but they can be separated into [...] -
Gram-positive bacteria retain the color of the primary stain (crystal violet) in the Gram staining procedure and appear as purple/violet under a light microscope. These bacteria have a cell wall containing a thick layer of [...] -
This post was most recently updated on January 15th, 2020 Real-time PCR also called quantitative PCR (qPCR) is a variant of standard polymerase chain reaction in which amplification and simultaneous quantitation of a target DNA [...] -
Nested PCR is a modification of PCR designed to increase the sensitivity and specificity of the assay reaction. It involves the use of two primer sets directed against the same target and two successive PCR [...] -
Multiplex PCR is a variant of PCR method in which more than one target sequence is amplified using multiple sets of primers within a single PCR mixture. This enables amplification of several gene segments at [...]
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This post was most recently updated on August 26th, 2019 Streptococcus pyogenes is the leading cause of uncomplicated bacterial pharyngitis and tonsillitis commonly referred to as strep throat. Acute diseases associated with Streptococcus pyogenes occur chiefly in the respiratory tract (sinusitis, otitis), bloodstream (sepsis, [...] -
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This post was most recently updated on August 26th, 2019 Lipopolysaccharide (LPS) layer also called the outer membrane is the outer most layer present in the cell wall of gram negative bacteria. It is a [...] -
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Serotypes are groups within a single species of microorganisms, such as bacteria or viruses, which share distinctive surface structures. For example, all Salmonella bacteria look alike under a microscope but they can be separated into [...]
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