The 2017-2018 flu season proved to be unusually virulent, spurring Dr. Dan Jernigan, director of CDC's influenza division, to remark in a statement to the media in January, "flu is everywhere in the U.S. right now." It resulted in a record number of hospital admissions and, sadly, the highest number of report pediatric deaths since the 2014-15 season.

CDC summed up the season this way:

"The 2017-2018 influenza season was a high severity season with high levels of outpatient clinic and emergency department visits for influenza-like illness (ILI), high influenza-related hospitalization rates, and elevated and geographically widespread influenza activity for an extended period."

Even though viral infection this past season was abnormally high, it’s too soon to predict whether the 2018-2019 flu season will follow suit.

Typically, the U.S. experiences annual epidemics of seasonal flu. Most of the time, flu activity peaks between December and February but can last as late as May....