This year, the scientists may have gotten it wrong.
Dr. Jeremy Rowell at Medical City Arlington says they've already seen severe cases of the flu, mainly in elderly people. "Rite Aid pharmacists undergo special training and are professionally certified to administer immunizations and with thousands of locations across the country, Rite Aid pharmacies are a convenient and professional setting for flu shots".
According to the Centers for Disease Control - Georgia, Louisiana, Massachusetts, and Oklahoma are reporting widespread flu activity.
This is National Influenza Vaccination Week, and while experts say the vaccine may not be as effective this season as they had hoped, it can still minimize symptoms.
"Every year, there are deaths from influenza and pneumonia, and certainly, influenza is something to be concerned about", Sweeney said. If you get the flu, the vaccine can make it less severe and the more people who are vaccinated, the better off everyone is.
The Journal noted that another factor in the vaccine's ineffectiveness this year is the way it's made, using eggs to grow the strains.
Four states now have widespread flu activity, according to the Centers for Disease Control and Prevention.
According to the U.S. He said it's important to always wash your hands.
The Arkansas Department of Health said as of the end of November there have been close to 200 confirmed cases of the flu since October.
Those most at risk include the very young, the very old and those with weakened immune systems.