1 At age 65, one out of three people has a hearing loss. 2  60 percent of the people with hearing loss are either in the work force or in educational settings.
The 3 main causes of pneumomediastinum are. 1  Alveolar rupture with dissection of air into the mediastinum. 2  Esophageal perforation. 3  Esophageal or bowel rupture with dissection of air from the neck or the abdomen into the mediastinum.
Pneumococcal infection. Pneumococcal infection is an infection caused by the bacterium Streptococcus pneumoniae. S. pneumoniae is a common flora colonizing the nose and throat of 5â10% of healthy adults and 20â40% of healthy children. However, it is also the cause of significant disease being a leading cause of pneumonia, bacterial meningitis, and sepsis.