19 December 2005 11:30
宿主的免疫系統是病菌的殺手,亦或幫手?
by YukuanMark & 1 other人體的免疫系統可以防禦外來病源生物侵襲,以保障人體的健康,但在人的鼻腔及咽喉裡仍有許多不同種的細菌群聚,且細菌間會彼此競爭空間及資源。美國賓夕法尼亞州大學Jeffrey N. Weiser的研究團隊發現免疫系統也會充當某細菌群聚的幫手來消滅其他的競爭者,以空出多餘的空間供該菌種擴大勢力。
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last mark : 19/12/2005 11:30