Suddenly, immunity was no longer a given, and tens of thousands of cases — mostly in children — began to appear every summer, possibly as a result of seasonal fluctuations in new births.
Polio outbreaks picked up speed in the late ‘40s and early ‘50s, peaking with nearly 58,000 cases in 1952.
Then came a breakthrough in the form of Salk’s polio vaccine, which was approved in 1955. Case numbers plummeted as more and more children were vaccinated.
But though children lined up to take Salk’s vaccine in massive drives, teenagers were decidedly slower to line up for a shot.
Part of the teen vaccine-messaging issue came down to terminology.
For years, people had referred to polio as “infantile paralysis,” stoking the impression that teens and adults weren’t at risk. Then there was the perceived inconvenience of the three-dose vaccine regimen, and some feared needles or the vaccine itself.
“Teens felt healthy, almost indestructible,” said Stephen Mawdsley, a social historian and lecturer in modern American history at the University of Bristol in England. In reality, they were anything but — and for protection from the virus, they needed the vaccine.
But the same social forces that made adolescents feel (wrongly) more resilient than their younger counterparts ended up becoming a secret weapon against polio.
In response to the vaccine lag in teens, the National Institute for Infantile Paralysis, a polio non-profit that distributed funds raised by the March of Dimes, recruited directly from that reluctant demographic.
In 1954, the organization began inviting select groups of teenagers to their New York offices, interviewing them on their perceptions and reservations about the vaccines, and equipping them with talking points to promote shots of the vaccine back home.
The teens, Mawdsley said, were motivated by personal experiences with polio survivors and victims, a desire to support causes they cared about, and a search for social empowerment.
“They were in a phase of life where they wanted adults to respect them,” he said.
Peanuts for polio
The teenage war on polio took on several forms.
While officials recruited teen idols like Elvis Presley and Debbie Reynolds to spread the word via public vaccination campaigns, adolescent vaccine ambassadors became celebrities in their own right as they participated in grassroots vaccination efforts that often resulted with their names and photos in print.
They sold “Lick Polio” lollipops and “Shell Out for Polio” peanuts to raise money for the March of Dimes, and wrote impassioned letters urging teen vaccination for the editorial pages of local newspapers.
Even teen libidos were leveraged for the polio vaccine effort.
“Some of us girls have talked about not dating fellows for certain activities, if they haven’t had their polio shots,” said Patty Hicks, the national chair of Teens Against Polio, in 1958. The “vivacious, dark-eyed ‘brownette,’” as Hicks was described at the time, encouraged other girls to do the same.
Though it’s hard to quantify how much of an effect teen activism had on acceptance of the polio vaccine, their advocacy certainly helped transform attitudes toward the virus, Mawdsley said.
“All of a sudden, the vaccines weren’t just for responsible adults or young children. They were for cool teenagers.”
As a result, teen uptake increased in the late 1950s.
Advances in polio vaccines helped as well, and a less-expensive, single-dose vaccine replaced the three-shot Salk vaccine in the 1960s. Since 1979, no polio cases have originated in the United States, and in 2016, there were only 42 cases of polio worldwide.
More than 60 years have passed since “Salk hops” swept the nation, and now the United States is in another national vaccination push in the race to contain the spread of COVID-19.
While political, social and generational echo chambers fuel vaccine hesitancy, the teen vaccination “fad” of the 1950s and 1960s offers lessons on how to leverage that insularity on behalf of public health.
“We need to identify the groups that are hesitant and recruit from within their ranks, educate them, and send them back with messages to inform them,” Mawdsley said. “Otherwise, we’re not going to break in.”
Erin Blakemore writes for National Geographic. This story is part of the Solutions Journalism Network, a nonprofit organization dedicated to rigorous reporting about responses to social problems. It originally appeared here.