pneumonia is caused by infection with viruses, bacteria, fungi and microorganism

adenoviruse aeruginosa anatomy ascaris asthma bacteria bacterial biological biology body bronchiole bronchioles bronchitis care cause caused closeup condition cough disease educational emphysema example fungal fungi health histoplasma human illness illustration infection inflammatory lung lungs medical medicine microbe microorganism microorganisms normal other parasitic pathology pneumonia pneumoniae pseudomonas pulmonary respiration respiratory science sickness streptococcus system tuberculosis use vector viral virus viruses