5 Burning Questions About Swine Flu In the month since the new H1N1 flu virus first emerged, public health officials have come a long way in profiling the disease. But several key questions remain, including, How afraid should we be? Share Tweet Full List The H1N1 EpidemicRemaining H1N1 Questions How Deadly Is H1N1? Should We Close Schools with H1N1? Where Did Swine Flu Come From? Should WHO Revise its Pandemic Response? Who Is Legally Responsible?