More than 3,000 people have died from the Ebola virus in West Africa, and the World Health Organisation has declared the outbreak an international health emergency.
On Tuesday evening a man from Texas became the first person to be diagnosed with Ebola on American soil. But while the virus has had a devastating toll in Africa, there is little reason to panic about the spread of the disease in America and the UK.
Ebola is transmitted through contact with infected people’s bodily fluids, including sweat, blood and vomit. Some people are infected by contact with a victim or cleaning up after them, but the virus can survive for several days outside the body on soiled clothing and anything a patient has touched.