...mucous membrane that is an entry point for bugs. "That's the easiest way to avoid getting infected," said Dr. Jack Gwaltney, a professor of medicine and head of the division of epidemiology and virology at the University of Virginia Medical...

...you get chilled enough, some of the immune systems in your lungs might not work as well," says cold expert Dr. Jack Gwaltney of the University of Virginia School of Medicine. But even then, viruses and bacteria -- not the cold environment...