Molecular genetics is used to detect specific phenotypes of microbes that are indicative of pathogen presence. For example, through genetic isolation and analysis, it is possible to identify protein structures along with DNA, and RNA sequences that code for specific pathogens. This enhances the accuracy of detecting the root cause of infectious diseases.
Typically, blood screening is used to test for infectious diseases. This relies on serological techniques and seroconversion. This practice produces antigens that can initiate an immune response. Not only is this practice time consuming, but it may not be as accurate as molecular genetic testing.
The use of real-time polymerase chain reaction (PCR) is the solution to the issues previously associated with conventional methods of pathogen testing. PCR breaks down DNA to fragmental components so that it can duplicate and amplify the genetic material present. This is critical for diagnosing and identifying infectious diseases. We are able to isolate the genetic material of viruses, and generate millions of copies to demonstrate the presence of such viral infections. Thus, we PCR allows laboratory technicians to identify microorganisms on the molecular level, which is highly accurate. This also allows us to detect the presence of microorganisms before their growth and before the result in symptoms.
One area of molecular diagnostic practices is seen in the advancement of women’s health. Using genetic analysis, physicians can not only diagnose difficult pathologies, but they can also provide early warning signs from the samples that have been taken.