Can pneumonia can occur if a person does not use his lungs to breathe deeply very often?

No it can not occur that way but obviously it can lead to pneumonia slowly if you keep doing this unhealthy act.

Most kinds of pneumonia are contagious. Both viral and bacterial pneumonia can spread to others through inhalation of airborne droplets from a sneeze or cough.

Pneumonia occurs when you inhale bacteria into your lungs from food, drink, or saliva. This type is more likely to occur if you have a swallowing problem or if you become too sedate from the use of medications

this disease is :

* endemic (present in a defined area that is a village)

* a bacterial infection (treated with antibiotic)

* communicable by contact (by the hands)

manu-porterage is the most common mode of transmission, it transmits germs from one individual to another via the hands. this concerns infections of exogenous origin.

endemic disease, or endemic disease, refers to a disease that is constantly present in a given population, often tied to a specific geographic origin, as opposed to a pandemic that is not a sporadic disease.

antibiotics are molecules that have the property of killing (bactericidal) or limiting the spread (bacteriostatic) of bacteria.