Isata Kallon, a nurse at Kenema Hospital in eastern Sierra Leone, remembers the day 3-year-old Ibrahim showed up at the Ebola treatment center. He was with his mother and two older brothers, ages 5 and 8. They all had Ebola. Ibrahim was especially sick, vomiting constantly.
"The chance of survival was very low for him," says Kallon, who's in her 30s. She sits at a picnic table outside the Ebola ward, her hair pulled back with a hairband and her blue nursing scrubs tinged with sweat around the neck.