其中肠道病毒最为常见，HSV-2次之，其他如腺病毒、VZV、CMV、EBV、风疹病毒、麻疹病毒以及轮状病毒等也均有报道。
O O B-mic I-mic I-mic I-mic O O O O O O O O O O O O O O O O B-mic I-mic I-mic O B-mic I-mic I-mic O B-mic I-mic I-mic O B-mic I-mic I-mic O B-mic I-mic I-mic I-mic O B-mic I-mic I-mic I-mic O O B-mic I-mic I-mic I-mic O O O O O O O