Abstract
Pneumonia occurs worldwide. The lowest age groups as well as children with malnutrition are particularly at risk.
The source of the infection causing pneumonia is not only human, they are also observed in various zoonoses, some microbes began to apply with a change in the environment (air conditioners, humidifiers, fans). In the temperate zone, it is more common in winter.
In the community, they make up about 3% of all respiratory diseases in childhood.