With holiday gatherings and New Year's celebrations in the rearview mirror, many Americans are coming down with respiratory ...

How long are you contagious after getting COVID, flu, RSV, pneumonia, the norovirus stomach bug and more? Here's what to know ...

Common and highly contagious illnesses are reaching several-month highs. Norovirus has almost reached a several-year record.

COVID symptoms can be mild, severe, or nonexistent, according to the CDC—and can appear as late as two weeks after you’ve ...

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

In a CNN interview on Monday, White House chief medical advisor Dr. Anthony Fauci defended a big change to the CDC Covid guidelines. His comments, to say the least, have raised some eyebrows.

The latest data on U.S. COVID-19 test positivity rates shows a complicated picture as we head towards the new year.

Respiratory illness activity is currently considered "high" in the United States, according to the CDC. In one state, it is ...

Is COVID going around again? The CDC's wastewater surveillance system suggests the virus is growing in prevalence.

The world first became aware of Covid-19 five years ago. We evaluate where we are, remember how we got here, and consider ...

Robert Redfield, who led the CDC during Trump's first term, said "it's possible" that U.S. intelligence agencies were helping ...

Self-isolation rules for Covid may no longer be in place but it is still advised you stay home if testing positive to avoid ...