Which condition is NOT primarily associated with wheezing?

Wheezing is primarily associated with conditions that involve the narrowing of the airways, making it difficult for air to move in and out during breathing. Asthma, for instance, is characterized by inflammation and constriction of the airways, leading to wheezing, cough, and shortness of breath. Similarly, bronchitis, especially chronic bronchitis, can lead to wheezing due to increased mucus production and airway obstruction.

Emphysema, a type of chronic obstructive pulmonary disease (COPD), is also associated with wheezing as it involves damage to the alveoli and can result in narrowing of the air passages.

On the other hand, pneumonia is an infection that inflames the air sacs in the lungs, which can fill with fluid or pus. While it can cause a variety of respiratory symptoms such as cough and shortness of breath, it is not primarily characterized by wheezing. The presence of wheezing in pneumonia is not as common or defining as in the other conditions mentioned, primarily because the inflammation and fluid in pneumonia may not cause the airways to narrow in the way that leads to wheezing. Therefore, pneumonia is the correct answer as the condition not primarily associated with wheezing.