This strain causes severe bronchitis with excessive coughing, requiring nebulizers, inhalers, or oral steroids for relief, ...

Kids have been hit especially hard: as of February 22, 98 children—most of them unvaccinated—have died from flu in the U.S.

Griffin said the flu is “the most common” illness infectious disease consultants are being called for in hospitals right now. This story was updated to add current flu CDC map.