Sudden fever, a severe cough and acute respiratory distress are the familiar onset symptoms of seasonal flu, which has affected WHO’s European Region with unusual intensity and speed this year. As the Northern Hemisphere enters winter, health systems are struggling to manage an epidemic driven by an aggressive, genetically mutated influenza strain A(H3N2) subclade K. … Continue reading New Flu Strain Sweeping Europe Says WHO; but Vaccines Remain Effective, ECDC Finds