ID 原文 译文
49800 口罩、手卫生和减少公共活动等非药物措施需进一步研究量化其作用。 The relative importance of non-pharmaceutical control measures including masks, hand hygiene, and social distancing require further research to quantify their impact.
49801 COVID-19在家庭内传播有不同的传播模式。 There are distinct patterns of intra-familial transmission of COVID-19.
49802 目前尚不清楚是否有遗传因素在内的宿主因素影响易感性或疾病进程。 It is unclear whether or not there are host factors, including genetic factors, that influence susceptibility or disease course.
49803 COVID-19有多种临床病程，对病程的精确描述难以实现。 COVID-19 has a varied clinical course and a precise description of that course is not available.
49804 此外，COVID-19的长期后果尚不清楚。 In addition, the long-term consequences of COVID-19 are unknown.
49805 对确诊时登记的COVID-19患者（与适当的对照组）进行观察性队列研究将有助于提供关于COVID-19临床、病毒学及免疫学特征的深入信息。 An observational cohort study of patients with COVID-19 enrolled from the time of diagnosis (with appropriate controls) could provide in-depth information about clinical, virologic and immunologic characteristics of COVID-19.
49806 表1总结了优先研究领域的直接目标和长期目标。 Table 1 summarizes priority research areas with immediate to longer term goals.
49807 附件4 现有知识局限 Knowledge Gaps
49808 现有知识局限和防控策略关键问题包括： Knowledge gaps and key questions to be answered to guide control strategies include:
49809 一、传染源 Source of infection