Acute Respiratory Infections
Acute respiratory infection is the most common acute infection in children in every continent. Infection with influenza (Flu) has been shown to impair children's attention and reaction time. It also affects hand-eye coordination and reduces the ability to tolerate high levels of noise, leading to children being distracted from learning activities.
In addition to environmental factors, Vitamin A deficiency can lead to promotion of respiratory infections by damaging the lungs and thus reducing resistance.