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 Causes of Pneumomediastinum. Pneumomediastinum is the name given to air in the mediastinum. Pneumomediastinum is often caused by injury or disease. It typically results when air leaks from your lungs into your mediastinum. Common causes of pneumomediastinum include: Excessive coughing. Repeated bearing down such as pushing during childbirth.
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.