Читать книгу Epidemic Respiratory Disease. The pneumonias and other infections of the repiratory tract accompanying influenza and measles онлайн

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Clinical Features.

For purposes of presentation, pneumococcus pneumonia following influenza may be divided into three clinical groups: (1) Lobar pneumonia; (2) lobar pneumonia with purulent bronchitis; (3) bronchopneumonia. No accurate data are available as to the relative frequency with which these three types occurred at Camp Pike. In the group of 105 cases studied there were 58 cases of lobar pneumonia, 11 of which had purulent bronchitis, and 47 cases of bronchopneumonia. The majority of these cases, however, occurred during the early days of the epidemic of influenza and probably show a considerably higher proportion of lobar pneumonias than actually occurred in the total number of pneumonias throughout the epidemic. This is indicated by the fact that of 100 consecutive cases of influenza selected for observation at the height of the epidemic, 3 developed clinical evidence of lobar pneumonia and 12 of bronchopneumonia.

(1) Lobar pneumonia presenting the typical clinical picture with sudden onset, tenacious rusty sputum, sustained temperature, and physical signs of complete consolidation of one or more lobes occurred in 47 cases; 36 cases in this group definitely followed influenza. In 11 cases no certain clinical evidence of a preceding influenza was obtained, and it is probable that some of these represent cases of pneumonia occurring independently of the epidemic of influenza.