The International Society for Environmentally Acquired Illness

ISEAI Webinar – Subclinical Presentations of Mold-Related Illness, Saturday July 27th

Join ISEAI Board President Mark Su, MD, FAAFP for an engaging, live virtual presentation about mold-related illness.

Geared toward licensed medical professionals seeing patients with subclinical presentations of mold-related illness, and/or serving patients in primary care settings.

Format: Live 1 hour interactive Zoom presentation including live Q&A and free recording provided to all registered attendees!

ISEAI Board Members Reflect on the 2023 Virtual Symposium (Video)

ISEAI members and visiting clinicians gathered in November for the 2023 ISEAI symposium.  Full of candid exchanges on the challenges and clinical complexity of treating complex chronically ill patients, member clinicians and indoor environmental professionals connected and collaborated to advance the clinical practice of mold illness.  All lecture recordings are now available!

Now available for individual sale! Board Member JW Biava’s presentation “Urinary Mycotoxin Testing: Know Your Tools Series”

350 clinicians collaborating to end complex chronic illness, one patient at a time.

Supporting Clinicians

Frustrated by the challenges of caring for complex patients or are unsure how to coordinate the different treatment approaches for illnesses caused by mold exposure, other environmental toxicants, persistent infections such as Lyme disease, and patients’ symptoms such as fatigue, brain fog, and pain?  ISEAI can help.

ISEAI is an active community of collaborative, open-minded clinicians, scientists, and indoor environmental professionals who can provide tools to help you optimize your own blueprint for managing complex patients facing environmentally acquired illness (EAI), using a functional medicine, root cause approach.

Our Origin Story

Many patients today have illnesses that are more complex than they were even 20 years ago. Few physicians have the time or ability to look at a patient’s whole health picture and properly diagnose and treat them. 

Our complex chronically ill patients are often sick, exhausted, in pain, anxious, and not sleeping, digesting, or thinking properly.  They have potentially been misdiagnosed or told their problems were “in their heads” – something increasingly known as ‘medical gaslighting.’ 

Environmental exposures are often root causes of ‘unexplained’ symptoms and syndromes.

I believe in ISEAI, because I believe in those who make up ISEAI. Our members are driven to help their patients. Our leaders are driven to help increase all of our knowledge and awareness, to help our respective patients. ISEAI is made up of people who are willing to stand in the gap for those who are often marginalized by friends, family, and even those in the medical community. That’s worth my time, and my energy.

These are the people I want on my team, those I want to align myself with… those I want to call my professional family. I’m proud to stand with those who make up ISEAI.


Quick links for medical and environmental professionals, and patients.

ISEAI FAQ for Family Members


We offer membership and educational conferences for a diverse group of licensed professionals, plus medical students and the general public.

Medical Providers > Explore emerging concepts when you join ISEAI’s community of collaborative, open-minded physicians, allied healthcare providers, and environmental professionals. There is also a Student Membership option!

Environmental Professionals > Learn cutting edge techniques for assessing and remediating environmental exposures. Collaborate with peers and physicians in this emerging field of complex chronic illness.

Patients > If you suspect that you or someone you love is suffering from an environmentally acquired illness, learn About EAI. Visit Get Help to find professional help.


Featured Videos

March 1, 2023 ISEAI Board President Mark Su, MD and ISEAI Board Treasurer Michael Schrantz, CIEC, CMI clarify some of the foundational biology of mold growth and associated toxins, as well as the language used in relation to diagnosis and interpretation of medical and environmental laboratory testing. This webinar has its own page where you can find more information, and a PDF of the slides.

January 18, 2022 Dr. Jill interviews ISEAI Members Dr. Lyn Patrick and Dr. Louise Tolzmann about the toxic effects of wildfire smoke exposure and how can we protect ourselves.