10. is the infection of the lungs caused by viruses and bacteria wherein the alveoli in the lungs are inflamed and become filled with liquid and pus making it difficult for the lungs to transfer oxygen - QAmmunity.org

10. is the infection of the lungs caused by viruses and bacteria wherein the alveoli in the lungs are inflamed and become filled with liquid and pus making it difficult for the lungs to transfer oxygen

asked Apr 4, 2021 13.8k views

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