Do you have the flu, Covid or RSV? Look out for these symptoms

Flu and Covid, including a new variant called BA.3.2, nicknamed “cicada,” are still circulating across the U.S. in 2026. How do you know what's making you sick?

It may be spring, but virus season isn’t over yet.

Flu and Covid, including a new variant called BA.3.2, nicknamed “cicada,” are still circulating, along with several other respiratory illnesses and a nasty stomach bug that are leaving many Americans feeling cruddy.

The symptoms for most of the viruses are so similar — sniffles, cough, muscle aches, fever — that doctors say you really can’t tell what you’ve got without a test.

Influenza A was really bad in the U.S. at the end of last year, driven by the H3N2 subclade K variant. As it began to peak in January, “we transitioned into seeing more of these other viruses,” said Marlene Wolfe, an assistant professor of environmental health at Emory University. “Every year we think of fall, winter and spring as this respiratory illness season,” she added, “but the reality is that there are different viruses that pop up throughout that season.”

Arkansas, North Dakota, Vermont and Wyoming are still experiencing moderate amounts of respiratory illnesses, while infections are low elsewhere in the country, according to the latest Centers for Disease Control and Prevention data.