Pneumonia - Symptoms and causes - Mayo Clinic Pneumonia is an infection that inflames the air sacs in one or both lungs The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing A variety of organisms, including bacteria, viruses and fungi, can cause pneumonia
Pneumonia - World Health Organization (WHO) Pneumonia is an infection of the lungs that is most commonly caused by viruses or bacteria These infections are generally spread by direct contact with infected people Pneumonia affects children and families everywhere, but is most prevalent in South Asia and sub - Saharan Africa Pneumonia can be prevented with simple interventions and treated with low-cost, low-tech medication and care
Pneumonia - What You Need to Know - Drugs. com Pneumonia Medically reviewed by Drugs com Last updated on Mar 3, 2026 Care notes Aftercare Ambulatory Discharge Inpatient Español Overview Risks Symptoms Diagnosis Treatment Prevention What is pneumonia? Pneumonia is an infection in your lungs caused by bacteria, viruses, fungi, or parasites You can become infected if you come in contact with someone who is sick You can get pneumonia if
儿童肺炎 - World Health Organization (WHO) 概述 肺炎是一种影响肺部的急性呼吸道感染。肺由称为肺泡的小气囊组成，当健康的人呼吸时会充满空气。患肺炎时，肺泡充满了脓和液体，使呼吸产生疼痛并限制吸氧量。 肺炎是全世界儿童因感染导致死亡的主要原因。2019年，肺炎估计造成740180名五岁以下儿童死亡，占5岁以下儿童死亡总数的14%
Pneumonia in the Western Pacific - World Health Organization (WHO) Pneumonia is an infection of the lungs that is most caused by viruses or bacteria These infections are generally spread by direct contact with infected people Pneumonia affects children and families everywhere but is most prevalent in South Asia and sub-Saharan Africa Pneumonia can be prevented with simple interventions and treated with low-cost, low-tech medication and care