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Pneumonia is the term for an infection in the lungs which are usually caused by bacteria or viruses. Pneumococcus bacteria is a common cause of lung infections, but it’s certainly not the only ger...

While upper respiratory illnesses affect the nasal passages, ear and throat, respiratory illnesses impact the lungs. In this chapter, we’ll discuss croup, pneumonia and bronchitis. You’ll learn the...

Mastoiditis is a complication of a middle ear infection. The mastoid bone is part of the temporal bone which sits at the sides and base of the skull. At one time, mastoiditis was a leading caus...