Respiratory illnesses are a concern when children gather indoors. Immune systems are exposed to more germs, leading to common colds, flu, and RSV.

Stomach bugs and other illnesses can also spread. Norovirus is one example, causing nausea and vomiting. Other illnesses may cause rashes or eye problems.

Further details about back-to-school health concerns are available from Ask Dr. Nandi's Health Alert. Parents can find information about recognizing symptoms and deciding when to keep kids home sick.