High Flu Levels Follow 5,000 Deaths Across USA

U.S. doctor visits for influenza reach their highest levels since 1997 as at least 5,000 deaths are reported following a nationwide winter surge.CDC data estimates 11 million cases and 120,000 hospitalizations as Vandana Madhavan warns that holiday travel and low vaccination rates fueled the spread.The spike follows the identification of the H3N2 K subclade in Argentina while Massachusetts health officials report a sharp increase in influenza A cases.