#NACCT2026
ACMT Pre-Symposium
Fungus Among Us: Updates in the Toxicology of Mushroom Poisoning
ACMT
@ NACCT
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Pre-Symposium | Beyond the Beat: Toxicology and Harm Reduction at Mass Gatherings
Join the American College of Medical Toxicology (ACMT) at the 2026 North American Congress of Clinical Toxicology (NACCT) in San Diego from October 21-25. The ACMT Pre-Meeting on Wednesday, October 21, 2026 will explore the fascinating topic of Updates in the Toxicology of Mushroom Poisoning.
This symposium will examine key aspects of mushroom toxicology, including basic science, foraging mix ups, updates on novel mechanisms of toxicity, emerging clinical syndromes, evolving regulation on cultivated psychoactive mushrooms, and a focus on incorporating lessons from several recent mushroom poisoning outbreaks—including death cap cases—to highlight challenges in clinical recognition and public health response. Bringing together clinicians, toxicologists, public health experts, and mycologists, the program will explore both classic and emerging issues in the field. Overall, the goal is to connect clinical care, public health, and research to improve recognition and management of mushroom-related toxicities.
Learner Objectives
- To be announced.
Registration information can be found on the NACCT website at: www.clintox.org/nacct
ACMT Pre-Symposium Agenda | October 21, 2026
Fungus Among Us: Updates in the Toxicology of Mushroom Poisoning
All times listed in local (Pacific) time zone.
| 8:45-9:00 AM | Welcome & Opening Remarks | |
| 9:00-9:45 AM | How to Forage for Information: Identification & Analysis 101 | TBD |
| 9:45-10:30 AM | New Syndromes Review and Analysis | Michael Yeh, MD, MS, Medical Toxicology Physician, Centers for Disease Control and Prevention (CDC), National Center for Environmental Health (NCEH) TBD TBD |
| 10:30-10:45 AM | Morning Break (15 minutes) | |
| 10:45-11:30 AM | Outbreak on the Mountain: Gryometrin and ALS on Mount Chavin | Peter S. Spencer, PhD, FANA, FRCPath, Professor of Neurology, School of Medicine, Oregon & Health Sciences University |
| 11:30-12:00 PM | Kidneys in the Crosshairs: Expanding the Differential of Nephrotoxic Mushroom Poisoning | Colleen Cowdery, MD, Chief Medical Officer, Washington Poison Center |
| 12:00-1:15 PM | Break for Lunch (75 minutes) | |
| 1:15-2:00 PM | A Deadly Harvest: Death Cap Mushroom in California | Colleen Cowdery, MD, Chief Medical Officer, Washington Poison Center Craig Smollin, MD, FACMT, Clerkship Director, University of California, San Francisco |
| 2:00-3:00 PM | Outbreaks and Public Health Panel | Craig Smollin, MD, FACMT, Clerkship Director, University of California, San Francisco Michael Yeh, MD, MS, Medical Toxicology Physician, Centers for Disease Control and Prevention (CDC), National Center for Environmental Health (NCEH) Russ Bartlet, MPH, Lead for Toxicology Outbreak Division, California Department of Public Health |
| 3:00-3:15 PM | Afternoon Break (15 minutes) | |
| 3:15-3:45 PM | Climate Change and Invasive Species | TBD |
| 3:45-4:15 PM | Psilocybin Lab Testing and Regulation in Commercial Mushrooms | Benjamin Hatten, MD, MPH, Medical Toxicologist, Toxicology Associates & Associate Professor of Emergency Medicine, University of Colorado TBD |
| 4:15-4:45 PM | Let’s talk about Mushroom databases: the Good the Bad, the Mis-classified | Robert Hendrickson, MD, FACMT, Professor of Emergency Medicine, Medical Director, Program Director, Oregon Health & Science University, Oregon Poison Center TBD TBD |