How to prevent 1.5 yo toddler from flu every week in childcare?

Besides the usual vaccinations and medications, you can try to increase baby's immunity by feeding him more foods with vitamin C. Dr. Experts recommend giving children foods packed with phytonutrients like blueberries, tomatoes, spinach, sweet potatoes. They are immunity boosting foods. If your child does not fancy fruits or veggies, you can include multivitamins in their diets. Vitamin D promotes immune-system activity and can be found in foods like eggs, milk, and yogurt, or sunlight exposure. Another tip would be to keep baby's fingernails short. This will prevent germs from clinging too much on baby's hands.