المصادر –
Eur J Clin Nutr. 2009 Apr;63(4):491-8. doi: 10.1038/sj.ejcn.1602967. Epub 2007 Dec 5.
J Am Diet Assoc. 2005 Apr; 105(4): 541–548. doi: 10.1016/j.jada.2005.01.029
The twofold standard deviation of acute respiratory illness episodes per year included up to 11 episodes in infancy, up to 8 episodes at pre-school age, and up to 4 episodes at school age. Children with recurrent monotopic infections beyond normal limits should be considered for an evaluation of possible local pre-disposing factors. Suspected immune weakness may help to identify children true risk of immunodeficiency.