As it does every fall, the CDC is urging Americans to get their annual flu shot. Last year, flu was rare because Americans stayed home and wore masks to prevent the spread of COVID-19. This lack of flu from 2020 to 2021 (flu season generally occurs between October and May) could mean a potentially severe season this coming winter, CDC director Rochelle Walensky, M.D., M.P.H, said.
“When there is an active flu season one year to another, then we have…some protective immunity from the season prior,” Walensky said at the Oct. 7 flu season media briefing co-hosted by the CDC and the National Foundation for Infectious Diseases (NFID) and several health providers. “We do not have a lot of protective immunity from last season and because of that, we are worried” about the most vulnerable populations including children, pregnant people and those 65 and older.
Last year, public health officials warned of a “twindemic” of both COVID-19 and the flu, but the worst of their fears did not materialize. Public health experts believe behavior restrictions implemented to prevent the spread of COVID-19 (i.e., social distancing, mask-wearing and online learning in schools) also prevented the spread of the flu. This year, with many of the COVID-19 restrictions lifted, the public health community is bracing for a surge.
Public health officials are concerned that possibly because of vaccine fatigue, 44% of Americans were either unsure or didn’t plan to get vaccinated against the flu, and 25% of them are at high risk from flu complications, according to this NFID survey.
“Frankly, we are alarmed by the large number of people who said they won’t get vaccinated,” said William Schaffner, M.D., NFID’s medical director and professor of preventive medicine and infectious diseases at the Vanderbilt University School of Medicine.