Whether you're welcoming home a new baby, flying to a new destination for a vacation or working around sick patients as a doctor or nurse, your immunity is your invisible armor against all the bugs ...

Dr. Omar Al-Heeti is an assistant professor of medicine at Southern Illinois University and practices internal medicine with a specialty in infectious diseases. He received his medical degree from the ...

There have been hundreds of measles cases reported in the U.S. since the beginning of the year. Here's what you need to know about measles immunity. When you purchase through links on our site, we may ...