Dr. Mike Yeadon is a retired Vice President and Chief Scientific Officer at Pfizer's Pharmaceutical Company, and researcher of immunology and respiratory disease. Afterwards he was the Consulting Acting Chief Scientific Officer at Apellis Pharmaceuticals. He has been critical of the WHO, the British and American governments' response to the Covid-19 pandemic, its understanding of immunity, the use of the PCR test, and the lack of proper safety procedures for experimental mRNA vaccines. Dr. Yeadon trained as a biochemist and pharmacologist, obtaining his PhD from the University of Surrey in UK