Trivalent inactivated influenza vaccine is not associated with sickle cell crises in children.
Hambidge SJ, Ross C, Glanz J, McClure D, Daley MF, Xu S, Shoup JA, Narwaney K, Baggs J, Weintraub E. Trivalent inactivated influenza vaccine is not associated with sickle cell crises in children. Pediatrics. 2012 Jan; 129(1):e54-9.