RT Journal Article SR Electronic T1 Challenges Encountered in the Implementation of Bio-Fluorescent Particle Counting Systems as a Routine Microbial Monitoring Tool JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP pdajpst.2021.012726 DO 10.5731/pdajpst.2021.012726 A1 Allison Scott A1 Ans Vanbroekhoven A1 Cedric Joossen A1 Chris Knutsen A1 David Govezensky A1 Hans-Joachim Anders A1 James Cannon A1 Joanny Salvas A1 Michael Dingle A1 Patrick Hutchins A1 Petra Merker A1 Philip Villari A1 Stephanie Ramsey A1 Anthony M Cundell A1 Victoria Navarro A1 Margit Franz-Riethdorf YR 2022 UL http://journal.pda.org/content/early/2022/07/15/pdajpst.2021.012726.abstract AB The transition from traditional growth-based microbial detection methods to continuous bio-fluorescent particle counting methods represents a paradigm shift, because the results will be non-equivalent in terms of microbial counts, and a continuous, rather than periodic, data stream will be available. Bio-fluorescent particle counting technology, a type of rapid microbiological method, uses the detection of intrinsic fluorescence of microbial cells to enumerate bioburden levels in air or water samples, continuously. The reported unit is commonly referred to as an auto-fluorescence unit, which is not dependent upon growth, as is the traditional method. The following article discusses challenges encountered when implementing this modern technology, and the perspective from a consortium of four industry working groups on navigating these challenges.