San Francisco, California – New viruses don’t appear often, so when the cause of death of three separate cases of a hemorrhagic fever is linked back to a virus that doesn’t match any yet known, virologists and geneticists immediately take notice. Such was the case last week, when the genome of a virus that killed three people in the Democratic Republic of Congo was successfully sequenced and found to be a new virus in the same family as the rabies virus. The virus, dubbed the Bas-Congo virus for the region where it was discovered, killed two of the three people it infected. The third was a male nurse who treated the other two victims. When the cases were first reported, samples were taken of the blood of the three infected, and the local virus lab tested the virus in an attempt to determine it’s origin. They were unsuccessful, and sent the samples to a group of researchers at the University of San Francisco, where they assembled the roughly 140 million pieces into a single genome. That genome gave them the information they needed to determine that this was a new virus in the Rhabdovirus family.