title: Persistence of virus-reactive serum immunoglobulin m antibody in confirmed west nile virus encephalitis cases.
abstract: Twenty-nine laboratory-confirmed West Nile virus (WNV encephalitis patients were bled serially so that WNV-reactive immunoglobulin (Ig) M activity could be determined. Of those patients bled, 7 (60%) of 12 had anti-WNV IgM at approximately 500 days after onset. Clinicians should be cautious when interpreting serologic results from early season WNV IgM-positive patients.
authors.affiliation: Centers for Disease Control and Prevention, Fort Collins, Colorado 80522, USA. jtr1@cdc.gov
authors.forename: John T
authors.initials: JT
authors.lastname: Roehrig
authors.forename: Denis
authors.initials: D
authors.lastname: Nash
authors.forename: Beth
authors.initials: B
authors.lastname: Maldin
authors.forename: Anne
authors.initials: A
authors.lastname: Labowitz
authors.forename: Denise A
authors.initials: DA
authors.lastname: Martin
authors.forename: Robert S
authors.initials: RS
authors.lastname: Lanciotti
authors.forename: Grant L
authors.initials: GL
authors.lastname: Campbell
mesh_terms: D000368:Aged; D000914:Antibodies, Viral / Q000097:blood*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007075:Immunoglobulin M / Q000097:blood*; D008297:Male; D008875:Middle Aged; D014901:West Nile Fever / Q000097:blood / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D007075:Immunoglobulin M