Pfizer’s Failure to Conduct Proper COVID Vaccine Toxicology Tests Called ‘Irresponsible and Unethical’

Veteran toxicologist Helmut Sterz, in a recent interview with John Leake, criticized the rapid development…

Children's Health Defense

According to a veteran toxicologist, the process that led to the development and safety testing of the Pfizer-BioNTech COVID-19 vaccine was “irresponsible and unethical.”

Helmut Sterz, who spent over three decades conducting toxicology research for major pharmaceutical companies — including Pfizer — claimed that proper and customary toxicology studies were not performed on the mRNA vaccine before its widespread distribution.

In an interview Monday with John Leake on the “Courageous Discourse” podcast, Sterz criticized the rapid development process and argued that health authorities failed to protect the public by accepting inadequate safety data.

Sterz’s background and expertise

Sterz brings decades of pharmaceutical industry experience to his critique of the COVID-19 vaccine development process. After completing his veterinary medicine studies, he spent three years in virology research before embarking on a career in toxicology.

Sterz’s career path led him through several major pharmaceutical companies, including Servier in France, where he became director of an institute with 125 employees and scientists. He later joined F. Hoffmann-La Roche in Basel, Switzerland, as head of its toxicity institute.

In 2001, Sterz moved to Pfizer in France, where he was responsible for toxicity centers in both France and England. He remained with Pfizer until 2008 when the company closed his work site.

Sterz was enjoying private life until the COVID-19 pandemic began when he became concerned about “all the different measures that were imposed on us…