JOURNAL OF TROPICAL PEDIATRICS, cilt.67, sa.4, 2021 (SCI-Expanded)
Background/Aim: Acute bronchiolitis is mostly caused by viral agents in children under 2 years of age. The disease mostly has a mild clinical course however severe cases are not uncommon. Vitamin D is known to exert immune-regulatory functions. We aimed to examine the association between the clinical severity of acute bronchiolitis and serum vitamin D levels in infants.