Assertion: live variola virus | /r/HasProperty | needed under the acvvr framework
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Source sentences:
text: Significant advances in our abilities to diagnose, treat, and to prevent smallpox disease have been made in the past two decades, largely as a function of concerted efforts using surrogate orthopoxviruses, and work with live variola virus that has, up to now, been accepted as needed under the ACVVR framework.