As my hon. Friend will know, the Democratic Republic of the Congo is one of the largest countries in Africa. Physically, it can sometimes be difficult to travel on the roads, and communications can be more challenging than they would be if such an outbreak happened here in the UK. The current outbreak is in the area of Beni—the previous outbreak happened in a completely different part of the Democratic Republic of the Congo—which is 20 miles from the Ugandan border. Physically, the area is quite large and people also move, which is why it is important to trace the contacts that people have had, because those contacts can move easily across the country and across borders.