他在接受經(jīng)驗性的無環(huán)鳥苷治療后, 多次血培養(yǎng)和腦脊液培養(yǎng)是陰性.He was treated empirically with acyclovir, and multiple blood and CSF cultures were negative.環(huán)二鳥苷酸系統(tǒng)是細菌纖維素生物合成中重要的調(diào)控體系.The Cyclic Diguanylic Acid Regulatory System is the important regulat...