It is most dangerous to the very young and to the elderly as these age groups are most likely to have weakened immune systems and other health problems. Coughing that may produce phlegm mucus.
Double Pneumonia Symptoms Treatment And Prognosis
Pneumonia can be caused by bacteria fungi and viruses.
Is pneumonia life threatening. Pneumonia symptoms can be mild to life-threatening. Pneumonia can occur in any age group and can be mild or life-threatening.