Flu B Symptoms 2025 May. March 19, 2025 6:00 am edt. If you get rsv, on the other hand, it may take 4 to 6 days before symptoms.
At first, the flu may seem like a cold with a runny nose, sneezing and sore throat. A wide spectrum of influenza viruses causes it.
Flu B Symptoms 2025 May Images References :