Viruses have developed unique and oftentimes complex molecular mechanisms to ensure efficient egress of mature virions from infected cells. Over the years, virologists have begun to unravel and appreciate the intricate roles of both viral and host proteins in this process, and particularly the specific recruitment of host factors to promote efficient budding of infectious virus. A better understanding of these virus-host interactions and the mechanisms of virus budding not only will provide fundamental insights into the functions of both viral and host proteins, but also will lead to the emergence of novel strategies to inhibit virion egress and spread. In this special issue on virus budding/host interactions, we have invited both review articles to summarize recent findings in the field as well as original research articles to provide new insights into this late stage of virus replication.
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