Bias can take many forms and is often not easily recognized by an investigator. Sherlock Holmes was keenly aware of bias' potential impacts. Applying more of Holmes’ famous observations and investigative principles can uncover hidden bias and greatly increase an investigator’s chance of finding that elusive definitive root cause.
This two-part article contains a collection of some of the most famous quotes attributed to Holmes that can be applied to microbial root cause analyses (RCAs). Keeping them in mind when conducting your analyses can greatly increase your chances of success in identifying that elusive definitive root cause.
Microbial data deviation investigations are notoriously difficult to perform. Evidence to support conclusions and decisions takes time to collect, and the available evidence is usually circumstantial.
Retraining an operator involved in a microbiological excursion is almost always part of the corrective and preventative action (CAPA), yet repeat excursions and deviations due to improper aseptic technique still routinely occur. So, why do some operators still have difficulty executing the task after completing such intensive training programs?