Kent Brantly of Samaritan’s Purse, right, gives orders for medication to administer to the Ebola patients through the doorway of the isolation unit in Liberia. Dr. Brantly spent almost four hours in a Tyvek suit in order to care for the three patients in the unit.

Kent Brantly of Samaritan’s Purse, right, gives orders for medication to administer to the Ebola patients through the doorway of the isolation unit in Liberia. Dr. Brantly spent almost four hours in a Tyvek suit in order to care for the three patients in the unit.