On: Doctors investigate mystery brain disease in Canad...

[eganp]

Intracranial inoculation of infected tissue is the old-school way to assay for prion activity. Sometimes it takes a few years to get an answer though, especially in cross-species assays [0].

[0] https://link.springer.com/chapter/10.1007/978-1-4614-5338-3_...