I had been wondering about how the border is being controlled.  Reuters gives us the info. HT: Penelope Hartnell

At a Mali border post in Kouremale about 130 km 80 miles south of the capital Bamako, five health workers stand under a thatched roof, directing passengers arriving from Guinea to wash their hands.Their temperatures are then taken with digital guns to check for fever, one of the early symptoms of the deadly Ebola virus that originated in Guinea and has spread to its southern neighbours Sierra Leone and Liberia.Mali is the only country that has not closed its border with Guinea. For regional health officials, this has narrowed the risk of potentially infected people slipping through in to Mali. So far, no case of Ebola has been recorded in Mali.But the operation at the border post to keep Ebola out poses logistical challenges at this remote point in the West African scrubland. The hand-washing water has to be trucked in from a village 15 km nine miles away in steel barrels and there is a lack of chairs in the waiting area.The main difficulty for Mali to keep the disease out, however, is that is that many travellers simply avoid the official border crossing – the lone paved road connecting the two West African countries – altogether.”There are many cars that pass by clandestine roads because they are scared of the controls,” said Djibril Bassole, a public transport driver plying the route from Conakry to the Malian capital Bamako.One kilometre north of the Kouremale crossing is a depot for cars coming from the Guinean capital that have sneaked in through a side road and avoided the Ebola control checkpoint.

via Mali struggles to filter passengers from Ebola-hit Guinea.