Single Institution, Bilateral, and Multilateral Collabortation Patterns (Institution Level) Area

Institutional collaboration modes for COVID-19 research. This graph is not cumulative. Papers are grouped by the week commencing on the dates given; the final week is incomplete. Publications counting toward ``single institution'' have only a single institutional affiliation, bilateral publications are affiliated with two institutions, and multilateral publications are those that are affiliated with more than two institutions. There is no sensitivity in this plot to the country in which institutions are situated.

新冠疫情研究中的机构合作模式。本图表并非累计式图表。论文按给定起始日期所在的自然周进行分组；最后一周的数据尚未完整。被归入“单机构（single institution）”类别的学术成果仅拥有单一机构隶属关系；双边合作（bilateral）类成果的隶属机构为两家；多边合作（multilateral）类成果的隶属机构则超过两家。本图表不受机构所在国家的影响。