The PDA Global Conference on Pharmaceutical Microbiology is a significant event in the field of pharmaceutical microbiology. However, as an AI language model with a knowledge cutoff in September 2021, I don't have information about specific events beyond that point. To obtain the most accurate and up-to-date information on the PDA Global Conference on Pharmaceutical Microbiology in 2023, I recommend visiting the official website of the Parenteral Drug Association (PDA). The PDA usually provides details about their upcoming conferences, including dates, locations, speakers, and registration information. Their website should have the latest information on the conference you're interested in.