The mother of a brain dead Oakland teen says her daughter is "much better physically" since leaving the hospital.  

In a letter posted online Wednesday Nailah Winkfield thanked people who have supported 13-year-old Jahi McMath since she was removed from Children's Hospital Oakland.  

She says her daughter is not suffering and has been moved to a long-term care facility.  

McMath was declared brain dead in December after suffering complications during tonsil surgery.