Popis: |
Direct immunofluorescent staining (DIF) of exfoliated cells and immunofluorescent staining of infected tissue culture cells (TCIF) are superior to conventional virus isolation (CVI) techniques for the diagnosis of respiratory virus infections. Out of 197 specimens from patients with respiratory syncytial virus (RSV), influenza or parainfluenza virus, measles, adenovirus or cytomegalovirus (CMV) infections, DIF recognised 84%, TCIF 82% and CVI only 42%. DIF and TCIF were particularly useful for the diagnosis of RSV and parainfluenza virus infections, and the optimal specimen for diagnosis was nasopharyngeal aspirate. |