Kelly (right) comforts her son after his hepatitis vaccination at the Children’s Health Center in Reading, Pa. The baby’s birth motivated her to do whatever it took to avoid relapsing into addiction, she says. “I was in love with him.”

Kelly (right) comforts her son after his hepatitis vaccination at the Children’s Health Center in Reading, Pa. The baby’s birth motivated her to do whatever it took to avoid relapsing into addiction, she says. “I was in love with him.”