title: A case of Powassan virus encephalitis.
abstract: A case of encephalitis due to Powassan virus, probably transmitted through tick-bite, is reported in an 8-year-old boy. There was a 50-fold increase in neutralization titre against Powassan virus, but the virus could not be isolated. Other virological investigations were negative.The patient survived and early physiotherapy and speech re-education could be instituted. Nine months after onset of illness the patient showed moderate sequelae, despite a very severe illness.
mesh_terms: D002648:Child; D003168:Complement Fixation Tests; D004669:Encephalitis Viruses, Tick-Borne / Q000276:immunology; D004675:Encephalitis, Tick-Borne / Q000453:epidemiology / Q000276:immunology / Q000382:microbiology / Q000534:rehabilitation / Q000628:therapy; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D008297:Male; D009500:Neutralization Tests; D026741:Physical Therapy Modalities; D011792:Quebec; D013987:Ticks