本病尚可并发神经系统、血液系统、心血管系统、皮肤、肌肉和关节等肺外并发症，如脑膜脑炎、神经根神经炎、心肌炎、心包炎、肾炎、血小板减少、溶血性贫血、噬血细胞综合征及皮疹，尤其是Stevens-Johnson综合征。
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