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Topic - Huang Aiben
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"Because these dust particles are relatively fine, they can be directly absorbed by the lung's tiny air sacs," Huang said. "The airway's ability to block the fine dust is relatively weak, and so bacteria and viruses carried by the dust can directly enter the airway."
The Beijing Shijitan Hospital received 20 percent more patients than usual at its respiratory health department, most of them coughing and seeking treatment for bronchitis, asthma and other respiratory ailments, Dr. Huang Aiben said.