How Marburg virus is caused

Marburg virus has been found in monkeys, chimps and fruit bats in Africa. Experts suspect the virus is transmitted to humans through an infected animal’s bodily fluids.

Examples include:

• Blood. Butchering or eating infected animals can spread the viruses. Scientists who have operated on infected animals as part of their research have also contracted the virus.
• Waste products. Tourists in certain African caves and some underground mine workers have been infected with the Marburg virus, possibly through contact with the feces or urine of infected bats.

Transmission from person to person

Infected people typically don’t become contagious until they develop symptoms. Family members are often infected as they care for sick relatives or prepare the dead for burial.

Medical personnel can be infected if they don’t use protective gear, such as surgical masks and gloves. Medical centers in Africa are often so poor that they must reuse needles and syringes.

Some of the worst Marburg epidemics have occurred because contaminated injection equipment wasn’t sterilized between uses.

There’s no evidence that Marburg virus can be spread via insect bites.

Click here to see the signs and symptoms of Marburg virus