Even a Single Case of Polio Is a Threat

The case of a young adult paralyzed by polio in New York is not simply unexpected. It’s shocking. The last time polio was diagnosed in New York State was in 1990. And yet the virus has now also been found in wastewater samples in Rockland County, Orange County and New York City. As surveillance continues, we will learn more, but what we know already is enough. We have circulating poliovirus that can cause paralysis in these communities. Polio in New York today is an imminent threat.

Unlike Covid-19, polio is not a novel disease. Once a source of terror in summer months, the virus seemed headed to the history books. Successful vaccination campaigns in the 1950s meant wild poliovirus was declared eliminated in the United States in 1979, and from the Americas in 1994.

Today, polio remains endemic only in the political disarray of Afghanistan and Pakistan, although Malawi and Mozambique have reported cases in the past seven months. Wealthy countries with monitoring in place are on high alert. On Aug. 10, the UK Health Security Agency announced it would offer a booster dose to children in London because a poliovirus has been found in wastewater, seeking to avert a human tragedy that has already happened here.

In a conversation, my colleague and friend, Jane Cardosa, a Malaysian virologist, calmly noted, “In our part of the world, one case of paralytic polio is an outbreak.” The case in New York State is no fluke, freak accident or government conspiracy. And it’s not surprising that we have had just one person develop paralysis. Many are unaware that about 70 percent of people who contract polio have no symptoms. About 25 percent of people infected experience symptoms that are mild or flu-like — headache, fatigue, fever, stiffness, muscle pain, nausea, a sore throat — all of which could be mistaken for many other illnesses. Under 1 percent of infected individuals develop paralysis. Of those paralyzed, 2 to 10 percent die when their breathing muscles become immobilized. On this virus, we simply cannot play the odds.

The greatest danger is to adults and children who are unvaccinated. While you may assume that you and your children are up to date with polio immunizations, now is the time for every adult, including those who are pregnant, to ensure that this is true.

The answer is simple, although the solution is not so easy. Vaccination coverage is too low in too many places, and unvaccinated and under-vaccinated individuals are too often clustered together. Approximately 60 percent of 2-year-olds in Rockland and Orange counties have completed their initial three-dose regimen. Well over 90 percent coverage is the goal and immunizing young children on-time is what we are after. Immunized people have a virtual wall against paralysis and may shed less virusif they get infected. Community spread is what drives the emergence of paralytic strains.

Up-to-date polio immunizations are a requirement for school-age children. But more vaccinations are needed, and sooner. The greatest hurdle is vaccine resistance, which has grown astronomically. True, many people have lost confidence in government, and public health departments have borne the brunt. Some believe they can protect themselves and their families by going against the advice of public health experts and flouting state-mandated immunization programs.

The problem is not just those who resist. Today, health departments don’t just fight infectious diseases, but disinformation campaigns designed to wage war against vaccines. During the 2018-2019 New York State measles outbreak, reporting showed highly targeted misinformation meant to seed doubt about vaccines directly among the community suffering the outbreak. According to a study conducted by the Kaiser Family Foundation in November 2021, 78 percent of adults said they heard at least one of eight false statements about Covid-19 or the vaccine and, worse, that they believed that statement to be true or were unsure if it was true or false. Bad actors with clever marketing prey on their victims openly .

Polio, like other recent viral threats, exposes societal fissures. There has been a loss in understanding that government performs necessary functions that individuals and families cannot do alone: Government protects our air, water and food. It suppresses contagion. A damaging cycle perpetuates when underresourced health departments are unable to mount the kind of response the public seeks, further diminishing trust. Budgets and policies may expand to meet a crisis, only to shrink when it passes. When public health bodies respond reactively, it’s too little, too late. The damage is done, the suffering has ensued, and faith in the institutions people need is left devastated.

This is where we are. The emergence of new pathogens like Covid-19 or unusual presentations of more recently identified viruses in the U.S., like monkeypox, will only be the beginning. Polio, an ancient scourge, can come back. The good news is that we can change this grim scenario.

Already, the New York State Health Department — in coordination with local and national health authorities — is working tirelessly. Together, we are conducting case investigation, assessing spread and communicating openly and honestly. Driving immunizations is the goal of our public health response. To be successful, local health care providers, community-based organizations, and trusted leaders are urged to join us.

Looking ahead, we must re-convince America that innovation in science, like space, and our medical advancements — whether the speed at which vaccination can be developed or the deployment of those already proven to be safe and effective — should be a great source of comfort and pride, never political football. There are many reasons, whether individual or group-based, that make some people more fearful of vaccines than of the diseases they protect against. We must therefore address every concern. The result means more public health, not less, integrated into our routine activities, school lessons and national consciousness, while accounting for community-based nuances and norms. Public health is public safety, and we must start investing in it as such.

It is my fervent hope that one day, we will declare that, like smallpox, polio has been eradicated. Vanished, as a source of human illness. Global eradication remains within reach. If we get there, it will be because of vaccines. Childhood immunization will be the hero of the story.

Mary Bassett is the health commissioner of New York State.

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