No this is a terrible argument and you are absolutely wrong.

First off polio was on the decline prior to the introduction of the vaccine. Poliovirus spreads via the fecal-oral route, often through contaminated water or food. Mid-20th-century improvements in sewage systems, clean water supplies, and waste management reduced transmission. Improved access to nutritious food, especially in impoverished areas like the Mississippi Delta, bolstered immune systems, reducing the severity of polio infections. Polio cases were declining in U.S. and Europe before the Salk vaccine’s introduction in 1955, driven by socioeconomic improvements, reduced crowding, and public health measures. Polio is also an intestinal virus, that gives children diahrea and does not normally cause paralysis but if your gut/blood barrier if messsed up then the virus can leave your gut and get into your nervous system and cause paralysis. DDT, a widely used pesticide in the 1940s–1950s, exacerbated polio’s neurological effects by destroying your gut/blood barrier, particularly in agricultural regions and its neurotoxicity worsened paralysis in infected individuals.

Secondly, the 1955 Salk vaccine rollout faced issues when improperly inactivated vaccines from Cutter Laboratories contained live poliovirus, causing infections and paralysis in DDT exposed individuals. This led to a temporary suspension and stricter manufacturing standards. Long term studies would have caught this.

Thirdly, between 1955 and 1963, some batches of the polio vaccine (primarily the Salk which is now fully inactivated vaccine but also the early Sabin oral vaccine) were contaminated with Simian Virus 40 (SV40), a virus found in rhesus monkey kidney cells used to grow poliovirus for the vaccine. SV40 was not discovered until 1960, and an estimated 10–30% of polio vaccines in the U.S. during this period were contaminated, potentially exposing millions of people. SV40 is known to cause tumors in animals, and there has been concern about its potential to cause cancer in humans. Epidemiological studies have investigated links between SV40 exposure and cancers like mesothelioma, brain tumors, and non-Hodgkin lymphoma. SV40 has been used in experiments to induce cancer in mice, primarily through the injection of the virus. SV40 has also been used to create cancer in transgenic mice with human ACE-2 receptors. Long term studies would have caught this.

So you are absolutely wrong, the poliovirus vaccine did not end polio. The decline of polio was driven by multiple non-vaccine factors: improved sanitation, better nutrition, a pre-vaccine decline, public health education, medical advancements, economic growth, natural immunity trends, quarantine measures and reduced DDT exposure. Early polio vaccine challenges, including the Cutter Incident and SV40 contamination (affecting millions between 1955–1963), complicated rollout but were resolved, allowing vaccines to complement these factors after a couple decades.

Also the covid shot is not a vaccine the polio vaccine is a vaccine. The inactivated polio vaccine is 99% to 100% effective after three doses, the covid shot has much less efficacy. Polio can paralyze you, covid is a mild cold. This is an apples to oranges comparison.

Polio vaccine is a terrible example of a successful vaccine not needing long term studies. You know absolutely nothing about polio or vaccines. Crack a book if DDT exposure hasn't destroyed all your neurons. Try Polio: An American Story by David M. Oshinsky or The Virus and the Vaccine: Contaminated Vaccine, Deadly Cancers, and Government Neglect by Debbie Bookchin and Jim Schumacher, Dissolving Illusions: Disease, Vaccines, and the Forgotten History by Suzanne Humphries and Roman Bystrianyk or The Moth in the Iron Lung: A Biography of Polio by Forrest Maready.