«No one would have guessed the lung would provide such an immediate and strong host defense system,» says Bryan Yipp, an immunologist at the... (sciencenews.org)
The leading cause of acute gastroenteritis linked to eating raw seafood disarms a key host defense system in a novel way: It paralyzes a... (scienceandtechnologyresearchnews.com)
Strengthen the immune system by «promoting the endogenous host defense systems... and enhancing the activity of natural killer cells.» (energeticnutrition.com)