71什么是莱姆病莱姆病(lyme disease,ld)是由疏螺旋体引起的人畜
美国疾控中心(cdc)
疾病预防控制中心(疾控中心) cdc(p):centers for disease
美国cdc发布的莱姆病传播途径(cycles of lyme disease)
又有孩子被咬这种吸血虫已进入活跃期被咬后别硬拔
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