The immune system's B cells create antibodies that can mount a response against just about anything—either destroying a pathogen or instructing the rest of the immune system to go after the offender.

How does the same infection, say the flu or a cold, give some people mild symptoms and leave others suffering? Why do people develop autoimmune diseases? And will we ever be able to predict when—and ...

The average human has about 1.8 trillion immune cells. These cells patrol the body for bacteria, viruses, cancers, and other threats. Vaccines enhance this security system by teaching our immune cells ...

Dozens of new discoveries reveal that defenses evolved by bacteria and viruses billions of years ago still define our own ...

In the following weeks, there will likely be an increase in respiratory illnesses such as influenza, COVID-19 and RSV. Now is an excellent time to strengthen your immune system to help combat those ...

How do we recover from illness when our immune system works against us? Autoimmune conditions contribute to disorders such as rheumatoid arthritis, type 1 diabetes, multiple sclerosis, psoriasis, ...

Lindsey DeSoto, RD, is a nutrition writer, medical reviewer, and registered dietitian who helps clients improve their diet for health-related reasons. Her writing covers a variety of topics, including ...

The immune system going rogue and attacking healthy tissue seems to behind some cases of long covid, a discovery that could open doors towards treatments ...

The holiday season can be intense. People are traveling, hosting family and friends, and going to events — all the while keeping up other responsibilities of work and caregiving. All this activity has ...

The immune systems of men and women are known to display key differences. Men are, broadly speaking, more vulnerable to viral infections such as COVID and influenza. Women mount a stronger response to ...