Serum ferritin levels predict disease severity in pediatric dengue infections Tzong-Shiann Ho 1,2,3 , Han Lee 1 , Ning Chung 1 , Fu-Chun Kuo 1 , Ching-Fen Shen 1 , Shih-Min Wang 1,2,3 , Ching-Chuan Liu 1,3 *.