State Hygienic Laboratory heading image.
Microbiology
Enteric serotyping checks for Salmonella.
Enteric serotyping checks for Salmonella.

Top Tests

It now is quicker and more efficient to analyze bacterial isolates because of the work this year by the Microbiology team and its partners.

Microbiology is the study of microorganisms in humans that are, or may be, the cause of illness.

Specialized testing is performed in several areas: bacteriology, parasitology, mycobacteriology (tuberculosis) and mycology (fungi).

The Microbiology section supports IDPH, all county health agencies and hospitals throughout the state by isolating, identifying and characterizing pathogens that are of public health significance. The section also performs all rabies testing associated with human exposure and performs enteric pathogen serotyping. It uses Pulsed Field Gel Electrophoresis to determine the DNA fingerprint of bacteria, and is a member of the CDC’s PulseNet, which uses these fingerprints to detect and define local and multi-state foodborne outbreaks.

Selected section staff participate in the CDC Laboratory Response Network, which responds quickly to biological, chemical and radiological threats and other high priority public health emergencies. They are able to perform confirmatory testing of suspect agents of bioterrorism.


  • Participated in a CDC national study to evaluate isolate recovery from specimens tested by culture independent molecular assays.
  • Developed a unique extraction procedure with our molecular partners that allowed significant volumes of bacterial isolates to be analyzed quickly and more efficiently.