Synergistic effect in viral-bacterial infection. I. Combined infection of the respiratory tract in mice with parainfluenza virus and Hemophilus influenza.

Animals Female Haemophilus Infections/complications,microbiology,mortality Haemophilus influenzae/cytology Lung/microbiology,pathology Mice Microscopy, Fluorescence Models, Biological Orthomyxoviridae Infections/complications Parainfluenza Virus 1, Human/cytology Paramyxoviridae Infections/complications,microbiology,mortality Pneumonia/complications,microbiology Respiratory Tract Infections/complications Time Factors