When people ask Paul Offit, MD, what worries him the most about the COVID-19 pandemic, he names two concerns. “One is the lack of socialization and education that came from keeping kids out of school for so long,” Dr. Offit said in a recent interview. “And I think vaccines have suffered.”
Dr. Offit is director of the Vaccine Education Center and a professor of pediatrics at Children’s Hospital of Philadelphia. He has watched with alarm as the American public appears to be losing faith in the lifesaving vaccines the public health community has worked hard to promote. The Centers for Disease Control and Prevention estimates that the proportion of kids entering kindergarten who have received state-required vaccines dipped to 94% in the 2020-2021 school year – a full point less than the year before the pandemic – then dropped by another percentage point, to 93%, the following year.
Although a couple of percentage points may sound trivial, were only 93% of kindergarteners to receive the vaccine against measles, mumps, and rubella (MMR), approximately 250,000 vulnerable 5-year-olds could spark the next big outbreak, such as the recent measles outbreaks in Ohio and Minnesota.
Dr. Offit is one of many public health officials and clinicians who are working to reverse the concerning trends in pediatric vaccinations.
“I just don’t want to see an outbreak of something that we could have avoided because we were not protected enough,” Judith Shlay, MD, associate director of the Public Health Institute at Denver Health, said.
Official stumbles in part to blame
Disruptions in health care from the COVID-19 pandemic certainly played a role in the decline. Parents were afraid to expose their children to other sick kids, providers shifted to a telehealth model, and routine preventive care was difficult to access.
But Dr. Offit also blamed erosion of trust on mistakes made by government and public health institutions for the alarming trend. “I think that health care professionals have lost some level of trust in the Food and Drug Administration and CDC.”
He cited as an example poor messaging during a large outbreak in Massachusetts in summer 2021, when the CDC published a report that highlighted the high proportion of COVID-19 cases among vaccinated people. Health officials called those cases “breakthrough” infections, although most were mild or asymptomatic.
Dr. Offit said the CDC should have focused the message instead on the low rate (1%) of hospitalizations and the low number of deaths from the infections. Instead, they had to walk back their promise that vaccinated people didn’t need to wear masks. At other times, the Biden administration pressured public health officials by promising to make booster shots available to the American public when the FDA and CDC felt they lacked evidence to recommend the injections.
Rupali Limaye, PhD, an associate professor of international health at the Bloomberg School of Public Health at Johns Hopkins University, Baltimore, studies vaccine behavior and decision-making. She would go a step further in characterizing the roots of worsening vaccine hesitancy.
“In the last 20 years, we’ve seen there’s less and less trust in health care providers in general,” Dr. Limaye said. “More people are turning to their social networks or social contacts for that kind of information.” In the maelstrom of the COVID-19 pandemic, digital social networks facilitated the spread of misinformation about COVID-19 faster than scientists could unravel the mysteries of the disease.
“There’s always been this underlying hesitancy for some people about vaccines,” Dr. Shlay said. But she has noticed more resistance to the COVID-19 vaccine from parents nervous about the new mRNA technology. “There was a lot of politicization of the vaccine, even though the mRNA vaccine technology has been around for a long time,” she said.