刷牙太少可能得肺病?这个新研究吓到我了
<p><span word="Previous">Previous</span> <span word="studies">studies</span> <span word="had">had</span> <span word="already">already</span> <span word="indicated">indicated</span> <span word="that">that</span> <span word="clean">clean</span> <span word="teeth">teeth</span> <span word="meant">meant</span> <span word="clean">clean</span> <span word="lungs">lungs</span>, <span word="at">at</span> <span word="least">least</span> <span word="among">among</span> <span word="the">the</span> <span word="aged">aged</span> <span word="residents">residents</span> <span word="of">of</span> <span word="hospitals">hospitals</span> <span word="and">and</span> <span word="nursing">nursing</span> <span word="homes">homes</span>.</p><p>此前已经有研究发现干净的牙齿通常意味着干净的肺，至少对于在医院和疗养院的老年人来说是的。</p><p><span word="Microbes">Microbes</span> <span word="in">in</span> <span word="saliva">saliva</span> <span word="that">that</span>'<span word="s">s</span> <span word="breathed">breathed</span> <span word="in">in</span> <span word="were">were</span> <span word="the">the</span> <span word="most">most</span> <span word="likely">likely</span> <span word="source">source</span> <span word="of">of</span> <span word="pneumonia">pneumonia</span>, <span word="but">but</span> <span word="the">the</span> <span word="identities">identities</span> <span word="of">of</span> <span word="the">the</span> <span word="top">top</span> <span word="offenders">offenders</span> <span word="were">were</span> <span word="yet">yet</span> <span word="to">to</span> <span word="be">be</span> <span word="determined">determined</span>.</p><p>唾液中的微生物是造成肺炎的最大嫌疑犯，但至于起主导作用的入侵物到底是什么，还有待确认。</p>
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