title: Patients with hepatitis A with negative IgM-HA antibody at early stages.
abstract: Two patients with acute liver dysfunction who were negative for serum IgM-HA antibody on presentation became positive a week later. At early stages of hepatitis A, serum IgM-HA antibody may be negative. Another assay approximately 2 wk apart is recommended.
authors.affiliation: Second Department of Internal Medicine, Faculty of Medicine, Tokyo Medical and Dental University, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Hirata
authors.forename: Y
authors.initials: Y
authors.lastname: Hoshino
authors.forename: H
authors.initials: H
authors.lastname: Sakai
authors.forename: F
authors.initials: F
authors.lastname: Marumo
authors.forename: C
authors.initials: C
authors.lastname: Sato
mesh_terms: D000328:Adult; D005260:Female; D006506:Hepatitis A / Q000175:diagnosis* / Q000276:immunology*; D035922:Hepatitis A Antibodies; D006508:Hepatitis Antibodies / Q000032:analysis*; D006507:Hepatovirus / Q000276:immunology*; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*; D008297:Male
chemical_list: D035922:Hepatitis A Antibodies; D006508:Hepatitis Antibodies; D007075:Immunoglobulin M