title: Severe tick-borne encephalitis in a patient previously infected by West Nile virus.
abstract: We describe severe tick-borne encephalitis (TBE) in a patient who had previously experienced West Nile fever, another flavivirus infection endemic in Hungary. Previous West Nile virus infection does not develop immunity either against TBE virus infection or the disease, and it does not mitigate its clinical course. The possibility of antibody-dependent enhancement is considered.
authors.affiliation: National Reference Laboratory for Viral Zoonoses, Department of Virology, National Centre for Epidemiology, Budapest, Hungary.
authors.forename: Emöke
authors.initials: E
authors.lastname: Ferenczi
authors.forename: Enikö
authors.initials: E
authors.lastname: Bán
authors.forename: Anita
authors.initials: A
authors.lastname: Abrahám
authors.forename: Tamásné
authors.initials: T
authors.lastname: Kaposi
authors.forename: Gábor
authors.initials: G
authors.lastname: Petrányi
authors.forename: György
authors.initials: G
authors.lastname: Berencsi
authors.forename: Antti
authors.initials: A
authors.lastname: Vaheri
mesh_terms: D000328:Adult; D000914:Antibodies, Viral / Q000097:blood*; D004669:Encephalitis Viruses, Tick-Borne / Q000276:immunology / Q000472:pathogenicity; D004675:Encephalitis, Tick-Borne / Q000276:immunology / Q000503:physiopathology / Q000821:virology; D005260:Female; D006801:Humans; D006814:Hungary; D012720:Severity of Illness Index; D014901:West Nile Fever / Q000276:immunology* / Q000821:virology; D014902:West Nile virus / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral