Influenza Pandemics Now, Then, and Again
… SARS it could not in 2009. Pandemic influenza, a frequent visitor in the past, was back again. As the threat of the … virus—how contagious and how virulent or fatal—and the ways that human societies act or structure themselves that … of humanity's most persistent and constant foes—many will get sick each year with some form of flu, some of them will …