Baylisascaris procyonis-Associated Meningoencephalitis in a Previously Healthy Adult, California, USA.

Over the past 30 years, the raccoon-associated roundworm Baylisascaris procyonis has emerged as an uncommon but noteworthy human pathogen associated with devastating eosinophilic meningoencephalitis in 25 patients (1–4). We report a case of neural larva migrans in an otherwise generally healthy man in California, USA.