disease has primary infectious agent Powassan encephalitis https://www.malacards.org/card/powassan_encephalitis icd11.foundation:1674038791 SCTID:416707008 powassan encephalitis virus infection MONDO:0000276 Powassan virus infectious disease UMLS:C0032858 ICD9:063.8 Powassan virus disease or disorder A disease caused by infection with Powassan virus. encephalitis, powassan Powassan virus caused disease or disorder MEDGEN:18601 DOID:0050179 GARD:0022741 infectious disease Flaviviridae infectious disease viral encephalitis tick-borne infectious disease Powassan virus