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.
1 Pneumococcus disease results from the bacteria Streptococcus pneumoniae. It causes pneumonia, ear, and sinus infections. Itâs the most common culprit in bacterial meningitis.  Neisseria meningitidis and less often Staphylococcus aureus can also cause meningitis.