But there are other respiratory viruses circulating as well. Along with flu, winter months are highs for the common cold, RSV and COVID-19. Here's what to know about flu symptoms in 2025 ...
The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.
RSV, respiratory syncytial virus, usually peaks in December and January while infecting the nose, throat and lungs, usually ...
The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...
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