the total concentration of secretory iga ( siga ) and secretory component ( sc ) as well as the occurrence of pathogen specific serum type ( igg , iga and igm ) and secretory type antibodies against streptococcus pneumoniae and haemophilus influenzae in the middle ear effusion during an attack of otitis media were studied by using the elisa method .
C0029883
middle ear effusion
C0029882
otitis media