Objective To study if staphylococcus au reus can be internalized by cultured human osteoblasts and to compare three stra ins of S.aureus in their abilities of invasion.

• 目的明确金黄色葡萄球菌能否侵入体外培养的人成骨细胞，并比较三个不同菌株在侵入能力上的差异。