Sonya Stokes, an emergency room physician in the San Francisco Bay Area, braces herself for a daily deluge of patients sick ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Here is what we know about polio as a disease, its vaccines and the likely number of lives saved through inoculation.

While Robert F. Kennedy Jr., President Donald Trump’s pick to lead the US Department of Health and Human Services, has backpedaled on his anti-vaccine rhetoric during his Senate confirmation ...