摘要目的:从文献计量的角度系统地分析2019年12月以来全球有关新型冠状病毒肺炎的研究热点问题的分布，旨在为科研工作者继续开展相关研究提供参考依据。方法:检索PubMed数据库自2019年12月1日起收录的相关文献，提取文献相关的关键信息进行文献计量分析，并应用wordcloud2程序包进行词频分析。结果:共检索获得有效文献194篇，发表于81本杂志。2020年2月上旬发表文献数量最多，单日最多发表论文24篇。其中，英文语种文献167篇(占86.08%)。论文包括病例报告、专家观点、指南、临床论著、述评和通讯等多种形式，内容涉及流行病学、预防与控制、病毒学、诊断与治疗、病理学与病因、疫苗与药物、疫情预测模型和生物信息分析等相关研究。英文文献中论著占比高于中文文献( P＝0.005)。其中国内作者完成的文章91篇(占46.9%)，国内作者和国际合作的文章15篇(占7.7%)，国外作者完成的文章共88篇(占45.4%)。 结论:目前有关新型冠状病毒肺炎的研究多集中在病毒学和流行病学方面，尚欠缺治疗、预后等相关研究成果。

abstractsObjective:To systematically analyze the distribution of research hotspots related to the COVID-19, provide reference for future scientific research.Methods:Relevant literatures collected by PubMed database since December 1 st, 2019 were retrieved, the key information related to literatures was extracted and analyzed, and the wordcloud2 package of R software was used for word frequency analysis. Results:A total number of 194 valid papers were obtained, which published in 81 journals. Most papers was published in early February 2020, and a maximum of 24 papers were published in a single day. 167 papers (86.08%) were written in English. These papers included case reports, expert opinions, guidelines, articles, reviews, communications and other forms, and the subjects included epidemiology, prevention and control, virology, diagnosis and treatment, pathology and etiology, vaccines and drugs, epidemic prediction models, and bioinformatics analysis. The proportion of article in English literatures was higher than that in Chinese literatures ( P=0.005). Among them, 91 papers (46.9%) were independently completed by the Chinese researchers, 15 papers (7.7%) were completed by the Chinese and foreign researchers, and 88 papers (45.4%) were completed by foreign researchers. Conclusions:At present, the researches on the new coronavirus pneumonia mainly focus on virology and epidemiology, but lack of relevant research such as treatment and prognosis.