The WHO Advisory Committee on VariolaVirus research has continued to oversee and report on the research plan.
世卫组织天花病毒研究咨询委员会一直在监督和报告研究计划的情况。
2
The vaccinia virus is a non-dangerous virus used in the smallpox vaccine because it is related to the variolavirus, which is the agent of smallpox.
痘苗病毒使用在牛痘苗时是无害的，因为它与作为传播天花媒介物的天花病毒相关。
3
Variolavirus belongs to the genus of orthopoxvirus, and there are some other infectious members, such as Vaccinia virus, cowpox virus, and monkeypox virus.