Does " with several pathogens of greatest bioweapons concern" mean...?

Does " with several pathogens of greatest bioweapons concern" mean "which concerns several pathogens of greatest bioweapons"?

Context:

In this article, we review the clinical management of deliberate infection with several pathogens of greatest bioweapons concern. On the basis of historical incidents coupled with information on ease of dissemination, contagiousness, mortality rates, public health impact, ability to engender panic, and the need for special preparedness,1-3 the Centers for Disease Control and Prevention (CDC) stratifies pathogens and toxins into three risk categories — A, B, and C — with category A meriting the highest level of concern and preparedness.4,5 In this review, we consider diseases that are caused by category A agents for which there are high-quality clinical data in the unclassified literature (see the Supplementary Appendix, available with the full text of this article at NEJM.org). The category A viral hemorrhagic fever viruses are beyond the scope of this review.

More:
http://www.nejm.org/doi/full/10.1056/NEJMra1409755?query=featured_home