Protecting older adults from COVID-19 comes with extra health considerations. Here, two experts weigh in on the best way to keep them healthy.

"We humans have only recently begun to exploit nature's CRISPR-Cas systems, but as it turns out, we are not the first."

Lost sleep, stress, and loneliness can up your chance of getting sick. That includes COVID-19 risk. There are, however, things you can do.

Researchers have mapped a COVID-19 patient's immune system response and figured out how long recovery takes, a big step in fighting the pandemic.

Researchers have mapped a COVID-19 patient's immune system response and figured out how long recovery takes, a big step in fighting the pandemic.

Your skin's outer layer is your body's first line of defense. New research digs into how skin cells reinforce the front lines.

Why do people of different sexes vary in their susceptibility to various diseases? New research points to body fat and the immune system.

Boosting the number of natural killer cells in the blood could offer a way to treat eczema and also help with related problems, like asthma.

A life-threatening cytomegalovirus infection only affects one in a million healthy people—it's so rare, researchers have hardly had a chance to study it.

After recovering from an infection, immune cells in the lungs remember the battle for next time, which may boost defenses against pneumonia.