Those infected with the flu are most contagious during the first three days, the CDC said. In some cases, however, people can ...

Flu cases are rising across the U.S. Here's what you need to know about symptoms, flu duration and the new strain ...

With flu cases surging in Illinois, mitigating spread is increasingly important. But how long are you actually contagious ...

It is peak cold and flu season, and this year’s influenza virus strain is making it a season to remember. 90% of flu cases this year are tied to influenza A strain, which has undergone several ...

Norovirus, the highly contagious stomach bug that causes vomiting and diarrhea, is surging again. Here's what to expect and ...

A case of measles was detected at Newark airport in New Jersey during holiday travel — and at Logan in Boston. Health ...

Flu cases are slowly rising in Illinois in the lead-up to holiday gatherings this week, so what should you know before you get together with friends and loved ones and how do you know if someone could ...

A highly contagious flu mutation called subclade K is sweeping the nation, raising health concerns about vaccine ...

Is it flu A or flu B, and how long is it contagious? Here's what to know about the flu virus running rampant in Michigan.

Is it flu A or flu B, and how long is it contagious? Here's what to know about the flu virus running rampant in New Jersey, ...

The most significant illness circulating right now is influenza, according to the Illinois Department of Public Health and ...

Newark isn’t the only major airport to report detections of the viral disease during the holidays. The Massachusetts ...