Fig. 2

Symptom Distribution by Virus and Hospitalization Status. Bar chart illustrating the frequency of symptoms/signs (fever, cough, sputum, dyspnea, and wheezing) among hospitalized and non-hospitalized individuals for Influenza A (Flu-A), Influenza B (Flu-B), Respiratory Syncytial Virus (RSV), and SARS-CoV-2. The figure highlights variations in symptom prevalence across virus types and hospitalization states.