Researchers have found what might be the source of the deadly MERS virus that his killed 47 people out of 94 confirmed cases.

An Egyptian tomb bat collected close to the home of the first victim was discovered to have the virus in its feces. Scientists were able to make a genetic match from the virus to the first victim. The connection was long suspected as bats have been connected to various diseases in the past such as SARS, Ebola and rabies.

However, scientists say it’s unlikely that the transmission of the virus came from bat to human. They believe the bats spread the disease to other animals who then infect humans.

One of the animals suspected as transmitting the virus is the dromedary camel. However, researchers point out all they have been able to find in camels is the antibody to fight MERS, not the actual virus itself. More studies have been launched to confirm camels as a link between bats and humans.

However, one scientist says the report shows a disturbing fact.

“The surprising overall message is that the bats (in Saudi Arabia) were not awash in the virus,” Professor Ian Jones of the University of Reading told the BBC. “Quite the opposite as only one example was found and that appeared to be incomplete. The main reservoir for this virus and how it gets to infect people remains unclear at this stage.”