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COVID ‘runner-up’: What to know about under-the-radar virus that just surged in California

COVID ‘runner-up’: What to know about under-the-radar virus that just surged in California

Following wave upon wave of COVID-19 outbreaks during the pandemic, this winter brought a triple whammy of the highly transmissible SARS-CoV-2 variant, along with influenza and respiratory syncytial virus, or RSV. But more recently there’s been an uptick in a lesser known respiratory virus, causing symptoms very similar to RSV. There’s a very good chance you’ve had it at some point but were unaware unless you were specifically tested for it at a hospital.