Immunology

The immune system is comprised of specialized white blood cells, called lymphocytes that adapt themselves to fight specific foreign invaders.

These are not bad bacteria. They are what biologists call commensals, creatures that eat at the same table with people to everyone's mutual benefit...

The study looked at 136 women with the disease and 544 women without the disease, all within the same age range

Immunization rates among children living in the inner city and enrolled in subsidized health care are just over half of national averages, a recent study has found.

About 77 percent of new mothers breast-feed their infants at least briefly, the highest rate seen in the United States in more than a decade, according to a government survey...

Two children died from influenza in upstate New York in the past two weeks, just as 11 states reported widespread flu activity across the U.S.

PHILADELPHIA — A nurse admitted Wednesday he cut body parts from 244 corpses and helped forge paperwork so the parts, some of them diseased, could be used in unsuspecting patients.

A Scotland grandmother who contracted a superbug was saved after doctors fed her daughter's feces to her.

People who feel isolated have haywire immune systems, researchers say