Certain immediate effects are similar to those from colds or other viral diseases, so it is often difficult to determine if the symptoms are a result of exposure to indoor air pollution.
有些即时反应与感冒或其他病毒感染疾病的症状相似，所以经常很难确定这些症状的罪魁祸首是不是室内空气污染。
Objective To study effects of rehabilitation on dyskinesia in children with viral encephalitis.
目的探讨康复治疗对病毒性脑炎患儿肢体运动功能障碍恢复的影响。
Viral antigens are generally safer but in order to avoid side effects, purified antigens or synthetic peptides can be used.
病毒性抗原一般比较安全，但是为了避免产生副作用，可以利用提纯抗原和合成缩氨酸。
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