Another source of chest pain is the esophagus, the tube that carries food from your mouth to your stomach. Acid backing up (refluxing) from the stomach into the esophagus causes pain that can mimic a heart disorder, as can spasms of the esophagus.
Ebola virus disease (EVD), formerly known as Ebola haemorrhagic fever, is a severe, often fatal illness in humans. The virus is transmitted to people from wild animals and spreads in the human population through human-to-human transmission. The average EVD case fatality rate is around 50%.
In Liberia, which has been hit the hardest by the outbreak, 3,280 people had been infected with Ebola -- more than half in the preceding three weeks -- and 1,677 of them had died. In Sierra Leone, Ebola had meanwhile infected 1,940 people and killed 593 of them. The three weeks since September 1 accounted for 38 percent of total infections. The situation in the country continues to deteriorate, WHO said, blaming especially a sharp increase in the number of new cases reported in Freetown.