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

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Superimposed infection of the lungs with other types of pneumococci than those primarily responsible for the development of pneumonia occurred not infrequently in this group of cases either during the course of the disease or shortly after recovery from the first attack of pneumonia. Pneumococcus Type II infection was superimposed upon or shortly followed pneumonia caused by Group IV pneumococci in 4 instances, by Pneumococcus II atypical in 1 instance. In 1 case pneumonia due to Pneumococcus II atypical occurred three days after recovery from a Pneumococcus Type I pneumonia, in another case Pneumococcus Type III infection was superimposed upon a pneumonia originally due to a pneumococcus of Group IV. These cases are presented in detail in another section of this report, and in several instances were shown to be directly due to contact infection from patients in neighboring beds.

In a similar manner, superimposed infection with S. hemolyticus at some time during the course of the pneumonia occurred in 13 cases in this group, with fatal result in all but one. Streptococcus infection occurred in pneumonia due to Pneumococcus II atypical once, to Pneumococcus Type III once, and to pneumococci of Group IV eleven times. Nine of these cases were free from hemolytic streptococci at the time of onset of the pneumonia, 4 showed a very few colonies of hemolytic streptococci in the first sputum culture made.