
1) Biological weapon
Found on
https://www.crosswordclues.com/clue/marburgvirus

The genus Marburgvirus is the taxonomic home of one species whose members are two related viruses that form filamentous virions, Marburg virus (MARV) and Ravn virus (RAVV). Both viruses cause severe disease in humans and nonhuman primates in the form of viral hemorrhagic fevers and both are Select Agents, World Health Organization Risk Group 4 Pat...
Found on
http://en.wikipedia.org/wiki/Marburgvirus
No exact match found.