"Older people are not as good at reacting to microorganisms they haven’t encountered before,” said physician and immunobiologist Janko Nikolich-Zugich of the University of Arizona College of Medicine. He calls it “the twilight of immunity.”
"Older people are not as good at reacting to microorganisms they haven’t encountered before,” said physician and immunobiologist Janko Nikolich-Zugich of the University of Arizona College of Medicine. He calls it “the twilight of immunity.”