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Baylisascaris procyonis

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Baylisascaris procyonis

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Squirrel with raccoon roundworm (Baylisascaris procyonis)

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baylisascaris procyonis

Baylisascaris procyonis, common name raccoon roundworm, is a roundworm nematode, found ubiquitously in raccoons, the definitive hosts. It is named after H. A. Baylis, who studied them in the 1920s–30s, and Greek askaris. Baylisascaris larvae in paratenic hosts can migrate, causing visceral larva migrans (VLM). Baylisascariasis as the zoonotic infection of humans is rare, though extremely dangerous due to the ability of the parasite's larvae to migrate into brain tissue and cause damage. Concern for human infection has been increasing over the years due to urbanization of rural areas resulting in the increase in proximity and potential human interaction with raccoons.
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  • Signs and symptoms 

  • Diagnosis 

  • Prevention 

  • Epidemiology 

  • Bioterrorism threat