Question

what is the phenomenia for 9th class​

Answer 1

Explanation:

Pneumonia is an infection of the lower respiratory tract, involving the pulmonary parenchyma.

Viruses, fungi, and bacteria can cause pneumonia. The lungs reaction to these foreign microbes is to cause an inflammatory response causing the bronchioles and alveoli to fill with fluid and become solid.

Pneumonia ranges in severity from mild and uncomplicated as often is the case with atypical infections, to fulminant and life-threatening, occurring more frequency in hospital-acquired pneumonia.

It is a common disease and a potentially serious infectious disease with considerable morbidity and mortality.

Pneumonia is the sixth leading cause of death and the only infectious disease in the top ten causes of death in the United States.