Health and Fitness Vitamin A Deficiency Associated with More Frequent Childhood Illness by Gary Kopycinski on February 7, 2014 Gary Kopycinski Author More in Health and Fitness: On Hantavirus, Park Forest Officials Urge Caution May 18, 2026 Rep. Kelly Condemns FDA Approval of Flavored E-Cigarettes May 6, 2026 Park Forest Aligns With Illinois Guidance on Childhood Vaccines Amid Federal Changes January 11, 2026 ANN ARBOR–(ENEWSPF)–February 7, 2014. School-age children with vitamin A deficiencies are more likely to get gastrointestinal and respiratory illnesses, a new study shows.