Flu is taking off in the U.S., with 40 states reporting high or very high levels of flu-like illness last week.

Several viruses -- seasonal flu, stomach flu, COVID-19 and RSV -- are surging in the United States and are expected to spike ...

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Respiratory illnesses and infections are spiking nationally, according to date from the Centers for Disease Control and ...

COVID-19 activity is increasing in most regions, with test positivity rising to 7.1%. Emergency department visits are also on the rise from previously low levels. The CDC anticipates continued ...

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Outbreaks of the stomach flu are spreading across the U.S and are far higher than average for December over the past 12 years, according to CDC figures.

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Thirteen states, including Georgia, are early hot spots with high or very high levels of flu activity, about double from the week before, according to CDC surveillance.