AIMS at AOAC Annual Meeting 2023

Brief Legionella History • Pneumonia outbreak in 1976 at Bellevue-Stratford Hotel • Etiologic agent identified as new waterborne pathogen o Legionella pneumophila serogroup 1 o Now over 50 named Legionella spp. (about half known to cause disease) • Method developed over next few decades to isolate L. pneumophila . o ISO 11731; Water Quality – Enumeration of Legionella

AOAC INTERNATIONAL 137 th Annual Meeting & Exposition August 25 – 30, 2023 • New Orleans, LA