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Updated: Feb 15, 2026

Employing Aeroponic Systems for the Clonal Propagation of Cannabis
Published on: December 1, 2021
Cryptococcal meningitis in a daily cannabis smoker without evidence of immunodeficiency
Bryan B Shapiro1,2, Rebecca Hedrick2, Brigitte C Vanle2
1Department of Psychiatry and Human Behavior, UC Irvine Medical Center, Orange, California, USA.
Abstract:
Cryptococcal meningitis is a life-threatening condition most commonly observed in immunocompromised individuals. We describe a daily cannabis smoker without evidence of immunodeficiency presenting with confirmed Cryptococcus neoformans meningitis. An investigation of cannabis samples from the patient's preferred dispensary demonstrated contamination with several varieties of Cryptococcus, including C. neoformans, and other opportunistic fungi. These findings raise concern regarding the safety of dispensary-grade cannabis, even in immunocompetent users.
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