Hannah has spent the first two years of her life in the intensive care unit . A year after her windpipe transplant , the patient is mostly breathing on her own . She was the youngest and first to receive this transplant in the United States .
Hannah Warren spent the first two years of her life in the intensive care unit . A month after her windpipe transplant , the toddler is mostly breathing on her own . Warren was the youngest and first to receive this transplant in the United States .