Public Health Microbiology focuses on the study of microorganisms responsible for infections of major Public Health importance. Such infections include:

1.Food and waterborne infections
2.Respiratory infections
3.Sexually transmitted infections.
4.Hospital acquired infections
5.Infections that are results of deliberate release - bioterrorism actions
6.Vaccine - preventable infections.

Its purpose is to contribute to the control and prevention of disease through the identification and characterization of microorganisms as well as through the understanding of their biology and epidemiology.

More specifically study areas of public health microbiology include: 

1.Basic principles of classification/taxonomy.
2.Genetic diversity – typing schemes.
3.Natural History – Ecological niches.
4.Modes of spread in the various environments.
5.Mechanisms of microbial pathogenesis, and immunology of infectious disease.
6.Classical and modern approaches to the development of vaccines for the prevention of human microbial diseases
7.Emergence and spread of mechanisms of antibiotic resistance.

Moreover among the objectives of Public Health Microbiology is the development of techniques:

1.For isolating, identifying and typing of microorganisms of public health importance.
2For monitoring environmental samples for the presence of health threatening organisms 
3.For the study of the immunoepidemilogy of infectious agents Lastly the data and findings from the field of public health microbiology will be used for the development regulatory requirements and standards. 
  

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