![Pathologists Lancet Kenya on Twitter: "Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus, causing cough with phlegm Pathologists Lancet Kenya on Twitter: "Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus, causing cough with phlegm](https://pbs.twimg.com/media/EThuFjNWAAA5i-g.png)
Pathologists Lancet Kenya on Twitter: "Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus, causing cough with phlegm
![Zodiac Pharma on Twitter: "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 Zodiac Pharma on Twitter: "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](https://pbs.twimg.com/media/FnDxcMxaUAAHbM2.jpg:large)
Zodiac Pharma on Twitter: "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
![Mayo Clinic on Twitter: "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 Mayo Clinic on Twitter: "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](https://pbs.twimg.com/media/FqZ3-1PXgAEZk9L.jpg)