求翻译：那么宿主相关因素对细菌CPS 的调控是否是通过CcpA 对cps 基因表达调控而实现的呢? 其主要的影响因素也是葡萄糖等各种糖类吗? 影响的结果在不同血清型中是否一样呢?这都是尚待解决的问题。这些问题的解决可明确宿主环境因素调控荚膜的机制，为肺炎链球菌的治疗药物或疫苗的研发提供新的作用靶点。是什么意思？

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The host related factors on the bacterial CPS regulation and control is through the CcpA CPS gene expression and control of? The main factor is also glucose and other sugars? The result of the impact in different serotypes, are the same? This is the issue that is yet to be solved. The solution to th

Then host correlation factor to bacterium CPS regulation whether is realizes through CcpA to the cps gene expression regulation? Its main influence factor also is the glucose and so on each kind of carbohydrate? Influence result in different blood serum whether same? This all is a question which Sha

Regulation of host-related factors on the CPS is realized by CcpA on gene expression and regulation of CPS? The main factors affecting a variety of sugars such as glucose, too? Results in the effect of different serotypes are the same? this is the outstanding issues. The solution to these problems c

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