FDA leaders say thousands of Americans are likely to die this winter because too many of them no longer believe in vaccines
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By Dr. Peter Marks and Dr. Robert Califf
Republished from the Journal of the American Medical Association
Vaccination is one of the most highly effective public-health interventions, responsible for saving millions of lives each year. In the U.S., authorized or approved preventive vaccines must be manufactured with high quality, and the effectiveness and favorable safety profile of vaccines must be demonstrated. Their safety over time is also closely and continuously monitored through multiple overlapping passive and active safety surveillance systems.
Despite the care taken in the development and deployment of vaccines and their clear and compelling benefit of saving individual lives and improving population health outcomes, an increasing number of people in the U.S. are now declining vaccination for a variety of reasons, ranging from safety concerns to religious beliefs. Setting aside for now the controversial issue of vaccine mandates at the federal, state, or local level in the U.S., which are not within the purview of the Food and Drug Administration, the situation has now deteriorated to the point that population immunity against some vaccine-preventable infectious diseases is at risk, and thousands of excess deaths are likely to occur this season due to illnesses amenable to prevention or reduction in severity of illness with vaccines.
To counter the current trend, we urge the clinical and biomedical community to redouble its efforts to provide accurate plain-language information regarding the individual and collective benefits and risks of vaccination. Such information is now needed because vaccines have been so successful in achieving their intended effects that many people no longer see the disturbing morbidity and mortality from infections amenable to vaccines. For example, smallpox has been eradicated, and polio has been eliminated from the U.S., through effective vaccination campaigns.
Measles was similarly eliminated, but imported cases remain a threat to those who are unvaccinated as well as to those who are immunocompromised. Regrettably, pediatric vaccine hesitancy now has been responsible for several measles outbreaks in the U.S., including a recent one in central Ohio involving locally acquired cases in 85 children, 36 of whom (42%) had to be hospitalized for complications. It is sobering to note that vaccine hesitancy to childhood vaccines, such as the measles, mumps, and rubella vaccine, has been found to cluster in middle- to high-income areas among parents with at least a college degree who preferred social-media narratives over evidence-based vaccine information delivered by clinicians. Anyone doubting the benefits of vaccination need only look to low-income parts of the world where measles vaccination is inaccessible, and many thousands of children continue to die each year due to preventable disease. Unfortunately, with the success of pediatric vaccination campaigns to date, increasing numbers of people have become complacent and underestimate the actual risk of forgoing vaccination.
In addition to making a difference regarding childhood immunization, communication regarding the potential benefits of vaccination can hopefully also improve the number of individuals accepting vaccination to protect against Covid-19, influenza, and respiratory syncytial virus disease (RSV). Vaccination rates against these respiratory pathogens are inadequate, and this is most distressing in older individuals in whom the benefits of vaccination in reducing hospitalization and death are eminently clear. In fact, uptake of the updated Covid-19 vaccine in the U.S. is only about 35% in those older than 65 years, which is about half the rate in this age group in the U.K.
What can we do to start tipping the scales in the direction of evidence-informed vaccine acceptance to reduce the risk of death and illness from diseases in which vaccines are effective? Evidence indicates that the most trusted source of information about health decisions remains clinicians who provide care. Broadly interpreted, this also includes retail pharmacists, who may serve as the only source of medical advice for the many individuals in the U.S. who lack a primary-care clinician or who are uninsured. All those working in health care, while being straightforward about the risks, need to better educate people regarding the benefits of vaccination, so that individuals can make well-informed choices based on accurate scientific evidence.
For example, contrary to a wealth of misinformation available on social media and the internet, data from various studies indicate that since the beginning of the Covid-19 pandemic tens of millions of lives were saved by vaccination. The benefits of these vaccines in prevention were largest in older individuals. However, studies show that people of all ages who are up to date on vaccination benefit and have a lower risk of developing long Covid.
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FDA graph from CDC data, adapted by Kentucky Health News; click image to enlarge it. |
During the Covid-19 pandemic, vaccine effectiveness appeared to be higher against the original strain of SARS-CoV-2 than against later variants. Nonetheless, since the introduction of the Covid-19 vaccines, in absolute terms vaccination has been associated with notably fewer deaths across the age range. A similar trend was seen in 2021 and 2023, even though the total number of deaths from Covid-19 have decreased more recently (note the order of magnitude difference on the scale). Those up to date on Covid-19 vaccination had notably lower numbers of deaths per million individuals than those who were unvaccinated. The benefits were apparent across the entire age range early on, and more recently following the exposure of a larger number of individuals to natural infection with one of the SARS-CoV-2 variants, with 16.5-fold and 3.6-fold reductions in death, respectively.
And although the argument is sometimes made that Covid-19 is not a serious illness in younger individuals, those who received at least one dose of any Covid-19 vaccine had a notably reduced risk of dying from this disease compared with those who had never been vaccinated. Comparing 11.71 million unvaccinated individuals with 9.9 million individuals who had received at least one dose of a Covid-19 vaccine, the risk of death was 2.46 times higher in the unvaccinated group. And this finding is not an outlier; other studies report equal or greater benefit. The message from the data on vaccination status and serious illness, subsequent hospitalization, and death is clear, and this can be communicated in verbal or visual terms to individuals contemplating vaccination.
It is often difficult for a person to take action when the individual risk of an outcome is relatively low, even when the consequences of complications are high, and the population effects are substantial. In situations such as with seat belts, however, the discussion ultimately has led to almost uniform use, and vaccination use had similarly been almost uniformly accepted. The current reversal of vaccine acceptance has already resulted in hundreds of thousands of excess deaths from Covid-19 and concern about the re-emergence of previously conquered infectious diseases.
We believe that the best way to counter the current large volume of vaccine misinformation is to dilute it with large amounts of truthful, accessible scientific evidence. To reduce deaths, hospitalization, and the burden on families and the health care system, all those directly interacting with individuals in a health care setting, ranging from front office staff to retail pharmacists to primary-care physicians, need to focus at every appropriate opportunity on helping to ensure that individuals have the necessary information to make informed choices regarding vaccination, considering the benefits and risks. By doing so, we can both help prevent pediatric infectious diseases and dramatically reduce the harm from pathogens such as Covid-19, influenza, and respiratory syncytial virus disease before we have another large wave of any of these vaccine-preventable illnesses.
Peter Marks is director of the Center for Biologics Evaluation and Research at the U.S. Food and Drug Administration; Robert Califf is FDA commissioner.
Kentucky Health News is an independent news service of the Institute for Rural Journalism and Community Issues, based in the School of Journalism and Media at the University of Kentucky, with support from the Foundation for a Healthy Kentucky.
Donate to Kentucky Health News here.
http://kyhealthnews.blogspot.com/2024/01/fda-leaders-say-thousands-of-americans.html
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