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In some cases, the cause of pulmonary alveolar proteinosis is unknown. In others, it is associated with infection or an immune problem. It also can occur with cancers of the blood system, and after exposure to high levels of dust.
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The cause of this disease is unknown. In some people, however, it appears to result from infection, immune deficiency, or from exposure to silica, aluminum oxide, and a variety of dusts and fumes. Symptoms include mild shortness of breath associat...
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