: What do you think causes these phenomena or events to happen?
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Most pneumonia occurs when a breakdown in your body's natural defenses allows germs to invade and multiply within your lungs. To destroy the attacking organisms, white blood cells rapidly accumulate. Along with bacteria and fungi, they fill the air sacs within your lungs (alveoli). Breathing may be labored.
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the alveoli in the root of our lungs is covered with fluids and causes breathing problems
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