ກໍລະນີຄົນຕິດເຊື້ອ ອີໂບລາ ເພີ້ມຂຶ້ນ ຢ່າງຫລວງຫລາຍ

A woman looks down as she walks past a man suspected of suffering from the Ebola virus in a busy part of Monrovia, Liberia, Sept. 12, 2014.

People stand around a man suspected of suffering from the Ebola virus in a main street in Monrovia, Liberia, Sept. 12, 2014.

World Health Organization (WHO) Director-General Margaret Chan addresses the media on support to Ebola-affected countries, at WHO headquarters in Geneva, Sept. 12, 2014.

Debbie Sacra, wife of ebola patient Dr. Richard Sacra, answers a question at a news conference held at the Nebraska Medical Center in Omaha, Neb., Sept. 11, 2014.

Sierra Leone's president Ernest Bai Koroma (left) is handed the keys to an ambulance by U.S. Embassy representative Kathleen FitzGibbon, one of five ambulances donated by the U.S. to help combat the Ebola virus in the city of Freetown, Sierra Leone, Sept. 10, 2014.

An ambulance transporting an American infected with the deadly Ebola virus leaves Dobbins Air Reserve Base in Marietta, Georgia headed for Emory University Hospital in Atlanta, Sept. 9, 2014.

Health workers care for patients infected with the Ebola virus, at a clinic in Monrovia, Liberia, Sept. 8, 2014. 

A health worker uses a thermometer to screen a man's temperature at a makeshift road block run by Guinean security forces near the town of Forecariah, Guinea, Sept. 7, 2014.