Researchers have identified ten monoclonal antibodies that react against the filovirus surface glycoprotein (GP) on the Marburg virus. As published in PLOS Pathogens last Friday, two of the mABs also cross-react with other members of the filovirus family (Ebola, Sudan, Bundibugyo, and Reston), which is surprising since cross-reactivity to filoviruses has not previously been seen in mABs.
Among the other eight antibodies, the most efficacious recognize a novel wing-like domain on GP and two confer 90 and 100% protection against Marburg infections.
Here's the paper (public domain):