Infectious diseases are widespread over the globe. According to a recent World Health Organization report, infectious diseases are now the leading cause of death among children and young adults worldwide. In non-industrialized countries, infectious illnesses caused 45 percent of all deaths and 63 percent of deaths in early childhood. The development of novel, rare, or long-forgotten infectious diseases in affluent countries, such as HIV/AIDS, Lyme disease, and tuberculosis, has piqued public attention and sparked commitments to surveillance and control. According to recent reports, infectious diseases cause more than 17 million fatalities worldwide each year, the most of which are caused by bacterial infections. As a result, controlling infectious diseases remains a critical duty around the world. Diagnostic medical bacteriology is divided into two categories. There are two types of diagnostic medical bacteriology. Identification and type are two components. Medical bacteriology diagnostics is divided into two categories. Identification and type are the two components. Molecular biology has the capacity to transform the way we live. Diagnostic tests are performed in order to improve patient care. They occur in a hospital or in the neighbourhood. Since the invention of PCR in the 1970s, in the late 1980s, there was a huge amount of research was done that allowed for the introduction application of molecular assays to a variety of clinical scenarios microbiology. Molecular biology is still being used. Many people have found it difficult to keep up with the quick changes. Before deciding which test to use, technology will become obsolete.
