PCR (Polymerase chain reaction )

Polymerase chain reaction (PCR) is an experimental method of molecular biology, a method for significantly increasing low concentrations of certain nucleic acid (DNA) fragments in a biological material (sample).
PCR allows diagnosing the presence of long-growing pathogens without resorting to time-consuming microbiological methods, which is especially important in gynecology and urology in the diagnosis of urogenital sexually transmitted infections.
Also, this method is used to diagnose viral infections, such as hepatitis, HIV, etc. The sensitivity of the method significantly exceeds that of immunochemical and microbiological methods, and the principle of the method allows diagnosing the presence of infections with significant antigenic variability.