Norma Melendez, a community health worker with City Health Works, walks along Second Avenue on her way to meet a client. City Health Works is an organization that is attempting to bring an African model of health care delivery to the United States. Bryan Thomas for NPR hide caption

itoggle caption Bryan Thomas for NPR

A team from Dr. Paul Farmer's Partners In Health nonprofit visited southeast Liberia's Martha Tubman Memorial Hospital in September. The hospital has a new, six-bed isolation unit financed by the U.N. Rebecca Rollins/courtesy of Partners in Health hide caption

itoggle caption Rebecca Rollins/courtesy of Partners in Health

Lorenzo Dorr works at the grass-roots level to help deliver health services in far-flung areas of Liberia. In July, he was on his way to meet with community health providers in Konobo, one of Liberia's most remote rural districts. Courtesy of Tiyatien Health/Last Mile Health hide caption

itoggle caption Courtesy of Tiyatien Health/Last Mile Health