12/2025 The waiting rooms of pediatricians' offices are full, many children are coughing, sneezing, or feverish, and many parents are worried. Is it an upper respiratory infection? RSV? Influenza? Or is it COVID-19? Yes, COVID-19 is currently circulating again.

Fever is one of the most unsettling symptoms: How high is too high? Do I need to reduce the fever? When is it dangerous? The good news: The current S3 guideline on fever management has provided clear, scientifically sound guidance since 2025 .