Task: Named Entity Recognition
Input (English):  METHODS : The prevalence of haemagglutination inhibiting ( HI ) antibodies to JE virus ( JEV ) , West Nile virus ( WNV ) and dengue - 2 virus ( DEN - 2 ) was detected by HI test and IgM antibody capture ELISA ( MAC ELISA ) was performed to determine recent infections with JE virus .
Output (English): IgM antibody