5.感染性血小板减少性紫癜宫内感染以巨细胞病毒、弓形体、风疹、疱疹病毒较为常见，生后感染以细菌感染为主，如败血症、肺炎、细菌性脑膜炎、尿路感染等。
O O B-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis B-dis I-dis I-dis I-dis O B-mic I-mic I-mic I-mic I-mic O B-mic I-mic I-mic O B-mic I-mic O B-mic I-mic I-mic I-mic O O O O O O O B-mic I-mic O B-mic I-mic I-mic I-mic O O O O B-dis I-dis I-dis O B-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis O O