Deep in the lungs, resident memory B cells stand guard against influenza reinfection—but whether they remain there may depend ...
The average human has about 1.8 trillion immune cells. These cells patrol the body for bacteria, viruses, cancers, and other ...
However, details of the intervening steps, as researchers have learned in the past 65 years, are quite complex — certain cells carry the flu antigen to the immune system, specific immune cells respond ...