Amid fears of coronavirus, second wave of seasonal flu hits US

Influenza poses a far greater threat to Americans than the coronavirus from China that has made headlines around the world, and the flu vaccine remains the best defense -- especially for children and the elderly. (Antonio Perez/Chicago Tribune/TNS)

NEW YORK — A second wave of seasonal influenza is taking hold in the U.S., just as health officials are on high alert for new cases of the novel coronavirus. Many of the symptoms are the same, but when it comes to immediate risk, Americans should fear the flu more.