Typing of Haemophilus influenzae by coagglutination and conventional slide agglutination.
Coagglutination was compared with conventional slide agglutination for the typing of 297 clinical isolates of Haemophilus sp. A 100% correlation was found with the H. influenzae type b isolates. Coagglutination showed no false-positive reactions with the nontypable strains of H. influenzae and H. parainfluenzae isolates; however, conventional slide agglutination exhibited many false-positive and non-interpretable reactions.
D000372:Agglutination Tests / Q000379:methods*; D005189:False Positive Reactions; D006193:Haemophilus influenzae / Q000145:classification*; D012699:Serology / Q000379:methods*